{"title":"Mark Mcgwire Baseballs","description":null,"products":[{"product_id":"mark-mcgwire-signed-rawlings-mlb-baseball","title":"Mark McGwire Signed Rawlings MLB Baseball","description":"\u003cp\u003eOwn a piece of baseball history with this \u003cstrong\u003eMark McGwire signed Rawlings Official MLB baseball\u003c\/strong\u003e—a must-have for collectors and fans of the legendary slugger. McGwire, famed for his record-breaking home run chase and powerful hitting, has left an indelible mark on the sport. Secure your memorabilia with confidence, as this autographed baseball is \u003cstrong\u003eauthenticated by Schwartz Sports Memorabilia\u003c\/strong\u003e with a \u003cstrong\u003etamper-proof numbered hologram\u003c\/strong\u003e and \u003cstrong\u003eCertificate of Authenticity\u003c\/strong\u003e, verifiable online.  \n\n\u003c\/p\u003e\u003cul\u003e  \n\u003cli\u003e\n\u003cstrong\u003eHand-signed by Mark McGwire\u003c\/strong\u003e – Legendary power hitter and former MLB star.\u003c\/li\u003e  \n\u003cli\u003e\n\u003cstrong\u003eRawlings Official MLB baseball\u003c\/strong\u003e – The perfect collector’s item or display piece.\u003c\/li\u003e  \n\u003cli\u003e\n\u003cstrong\u003eSchwartz Sports Memorabilia authentication\u003c\/strong\u003e – Includes a tamper-proof hologram and COA.\u003c\/li\u003e  \n\u003cli\u003e\u003cstrong\u003eIdeal for baseball fans, collectors, and memorabilia investors.\u003c\/strong\u003e\u003c\/li\u003e  \n\u003c\/ul\u003e  \n\nCelebrate the career of one of baseball’s most exciting home run hitters with this \u003cstrong\u003eauthenticated Mark McGwire autographed baseball\u003c\/strong\u003e—a prized addition to any sports memorabilia collection.","brand":"Schwartz Sports Memorabilia","offers":[{"title":"Default Title","offer_id":39980490719276,"sku":"MCGBSB112","price":269.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/MCGBSB112_fbcc812f-6818-4d8c-a354-55c1cfc88b39.jpg?v=1773307995"},{"product_id":"mark-mcgwire-signed-rawlings-black-mlb-baseball","title":"Mark McGwire Signed Rawlings Black MLB Baseball","description":"\u003cp\u003eOwn a piece of baseball history with this \u003cstrong\u003eMark McGwire signed Rawlings black official MLB baseball\u003c\/strong\u003e—a must-have for collectors and fans of one of the most legendary sluggers in the game. As a power-hitting icon, McGwire left an indelible mark on Major League Baseball, making this autographed baseball a valuable addition to any memorabilia collection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand-signed by Mark McGwire\u003c\/strong\u003e – A rare collectible from the MLB home run legend.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Rawlings black MLB baseball\u003c\/strong\u003e – A distinctive and striking display piece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthenticated by Schwartz Sports Memorabilia\u003c\/strong\u003e – Comes with a \u003cstrong\u003etamper-proof numbered hologram\u003c\/strong\u003e and \u003cstrong\u003eCertificate of Authenticity\u003c\/strong\u003e, which can be verified online for peace of mind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect for display\u003c\/strong\u003e – An excellent addition to any baseball memorabilia collection, man cave, or sports-themed office.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're a longtime fan of McGwire's record-breaking career or a dedicated memorabilia collector, this \u003cstrong\u003eautographed Rawlings black MLB baseball\u003c\/strong\u003e is a standout keepsake that captures the spirit of the game. Secure yours today before it’s gone!\u003c\/p\u003e","brand":"Schwartz Sports Memorabilia","offers":[{"title":"Default Title","offer_id":42089758916652,"sku":"MCGBSB115","price":279.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/MCGBSB115.jpg?v=1773565496"},{"product_id":"sammy-sosa-mark-mcgwire-dual-signed-official-mlb-baseball-w-1998-hr-chase","title":"Sammy Sosa \u0026 Mark McGwire Dual Signed Official MLB Baseball w\/1998 HR Chase","description":"\u003cp\u003eOwn a piece of baseball history with this \u003cstrong\u003eSammy Sosa and Mark McGwire dual-signed Rawlings official MLB baseball\u003c\/strong\u003e, celebrating their legendary \u003cstrong\u003e1998 Home Run Chase\u003c\/strong\u003e. This rare collectible features a special \u003cstrong\u003e\"1998 HR Chase\"\u003c\/strong\u003e inscription penned by \u003cstrong\u003eSammy Sosa himself\u003c\/strong\u003e, marking one of the most iconic seasons in MLB history.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentic signatures\u003c\/strong\u003e from both Sammy Sosa and Mark McGwire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"1998 HR Chase\" inscription\u003c\/strong\u003e added by Sammy Sosa, commemorating their record-breaking rivalry.\u003c\/li\u003e\n\u003cli\u003eOfficial Rawlings MLB baseball – the same brand used in professional play.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003eSchwartz Sports Memorabilia tamper-proof numbered hologram\u003c\/strong\u003e and \u003cstrong\u003eCertificate of Authenticity\u003c\/strong\u003e, verifiable online for peace of mind.\u003c\/li\u003e\n\u003cli\u003ePerfect for collectors, baseball enthusiasts, and fans of the legendary 1998 season.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRelive the electrifying summer of 1998, when Sosa and McGwire captivated the sports world in their race to break Roger Maris’s single-season home run record. Add this historic memorabilia to your collection today!\u003c\/p\u003e","brand":"Schwartz Sports Memorabilia","offers":[{"title":"Default Title","offer_id":43205398724652,"sku":"MCGBSB116","price":599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/MCGBSB116_8ea9f066-4a3d-4063-94db-b1d1cf36469e.jpg?v=1773565338"},{"product_id":"sammy-sosa-mark-mcgwire-signed-official-mlb-baseball","title":"Sammy Sosa \u0026 Mark McGwire Signed Official MLB Baseball","description":"\u003cp\u003eThis rare collectible features a \u003cstrong\u003edual signed Rawlings official MLB baseball by Sammy Sosa and Mark McGwire\u003c\/strong\u003e, two of baseball’s most iconic sluggers best known for their thrilling home run race of 1998. A must-have for fans of the era and collectors of historic MLB memorabilia, this signed baseball captures a legendary moment in baseball history when both players were at the center of America's pastime.\n\n\u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHand-signed by Sammy Sosa and Mark McGwire\u003c\/strong\u003e — two of the most powerful hitters in Major League Baseball history\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOfficial Rawlings MLB baseball\u003c\/strong\u003e — the industry standard for professional-grade collectibles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes tamper-proof Schwartz Sports Memorabilia hologram\u003c\/strong\u003e — guarantees authenticity and protects your investment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComes with Certificate of Authenticity (COA)\u003c\/strong\u003e — serial-numbered and verifiable online for your peace of mind\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCelebrates the historic 1998 MLB season\u003c\/strong\u003e — when McGwire and Sosa captivated the nation with their chase to break Roger Maris’ single-season home run record\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWhether you're a lifelong fan of the St. Louis Cardinals, Chicago Cubs, or simply admire the electrifying excitement of late '90s baseball, this dual signed Sammy Sosa and Mark McGwire baseball is a compelling centerpiece for any memorabilia collection. Don’t miss your chance to own a piece of baseball history that defined a generation.","brand":"Schwartz Sports Memorabilia","offers":[{"title":"Default Title","offer_id":44248355274796,"sku":"MCGBSB117","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/MCGBSB117.jpg?v=1773564983"},{"product_id":"sammy-sosa-mark-mcgwire-autographed-official-mlb-baseball-chicago-cubs-st-louis-cardinals-beckett-bas-witness-stock-253599","title":"Sammy Sosa \u0026 Mark McGwire Autographed Official MLB Baseball Chicago Cubs, St. Louis Cardinals Beckett BAS Witness Stock #253599","description":"\u003cp\u003e\nCelebrate one of baseball’s most iconic home run rivalries with this \u003cstrong\u003eOfficial MLB Baseball hand signed by Sammy Sosa \u0026amp; Mark McGwire\u003c\/strong\u003e. A must-have for collectors of 1990s sports memorabilia, this piece commemorates the unforgettable 1998 MLB season — a year that brought new energy to America’s pastime and captivated fans around the globe.\n\nBoth \u003cstrong\u003eSammy Sosa\u003c\/strong\u003e and \u003cstrong\u003eMark McGwire\u003c\/strong\u003e etched their names into baseball history during their legendary home run chase, reigniting passion in the sport. This dual-signed ball connects you directly to that legendary summer and makes for a standout addition to any collection of Major League Baseball memorabilia.\n\n\u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOfficial MLB Baseball\u003c\/strong\u003e hand signed by both \u003cstrong\u003eSammy Sosa\u003c\/strong\u003e and \u003cstrong\u003eMark McGwire\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthenticated by Beckett Authentication Services (BAS)\u003c\/strong\u003e with tamper-proof witness hologram included for verification and peace of mind.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerfect for MLB memorabilia collectors, baseball historians, and fans of the legendary 1998 home run race\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIdeal display piece\u003c\/strong\u003e for sports rooms, offices, or personal memorabilia showcases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nAdd a piece of baseball history to your collection with this authentic, certified keepsake that honors not just two sluggers, but an unforgettable moment in Major League Baseball legacy.\n","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":44844540100652,"sku":"253599","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/STOCK_10_8_25_1039__64442.jpg?v=1773527928"},{"product_id":"multi-signed-vintage-baseball-copy-1","title":"1984 Olympic Baseball Team Signed Ball - Mark McGwire, Cory Snyder, Will Clark and More","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade autographed and team-signed memorabilia from the 1984 U.S. Olympic Baseball team featuring Mark McGwire, Cory Snyder, Will Clark, and more—no COA included.\u003c\/strong\u003e Baseball was a demonstration sport at the 1984 Los Angeles Games, and this roster launched multiple future MLB standouts. McGwire went on to hit 70 home runs in 1998 and finished with 583 career HRs; Will Clark became a six-time All-Star and the 1989 NLCS MVP; Cory Snyder emerged as a key power bat in Cleveland’s late-’80s lineups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire, Will Clark, Cory Snyder, and teammates of the 1984 U.S. Olympic Baseball Team\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Team-signed baseball (1984 U.S. Olympic roster)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e None – No COA included (recommended for PSA\/DNA, JSA, or Beckett certification)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis is a strong early-career, display-ready team piece from a pivotal U.S. Olympic squad. Because no COA is included, serious collectors often submit items like this to PSA\/DNA, JSA, or Beckett, whose certifications help confirm the signatures and support long-term value in a well-documented collection.\u003c\/p\u003e","brand":"JP's Sports and Rock Solid Promotions","offers":[{"title":"Default Title","offer_id":45358734508076,"sku":"M14897","price":319.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/IMG_2959_b55e2d3d-0600-485a-a216-4dffc72aa1b1.jpg?v=1773574773"},{"product_id":"jose-canseco-mark-mcgwire-signed-rawlings-official-mlb-baseball-w-bash-brothers","title":"Jose Canseco \u0026 Mark McGwire Signed Rawlings Official MLB Baseball w\/Bash Brothers","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade autographed, signed memorabilia:\u003c\/strong\u003e Jose Canseco \u0026amp; Mark McGwire dual-signed Rawlings Official MLB baseball with “Bash Brothers” inscription—authenticated by Schwartz Sports Memorabilia. Together they powered Oakland to the 1989 World Series title. Canseco captured the 1988 AL MVP and became MLB’s first 40–40 player, while McGwire won the 1987 AL Rookie of the Year and set a then-record 70 home runs in 1998.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Jose Canseco \u0026amp; Mark McGwire (Oakland A’s “Bash Brothers”)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Rawlings Official MLB baseball, dual signed with “Bash Brothers” inscription (inscription added by Canseco)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Schwartz Sports Memorabilia tamper-proof numbered hologram and Certificate of Authenticity (online verification)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBacked by a Schwartz Sports COA and hologram, this verified authentic piece offers strong collector appeal and long-term confidence, linking two of the era’s most powerful sluggers on one classic MLB baseball.\u003c\/p\u003e","brand":"Schwartz Sports Memorabilia","offers":[{"title":"Default Title","offer_id":45445247729708,"sku":"CANBSB114","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/CANBSB114.jpg?v=1775810236"},{"product_id":"mark-mcgwire-sammy-sosa-autographed-official-mlb-baseball-smudged-beckett-bas-witness-3w367233","title":"Mark McGwire \u0026 Sammy Sosa Autographed Official MLB Baseball (Smudged) Beckett BAS Witness #3W367233","description":"\u003cp\u003e\u003cstrong\u003eCollector Grade MLB memorabilia: autographed and dual-signed Official MLB baseball by Mark McGwire \u0026amp; Sammy Sosa (smudged) with Beckett BAS Witness #3W367233.\u003c\/strong\u003e In 1998, McGwire set a then-record 70 home runs while Sosa hit 66 and won the NL MVP, fueling the era-defining home run race. McGwire is a 1989 World Series champion with 583 career homers; Sosa finished with 609 and is the only player with three 60-HR seasons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Sammy Sosa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official MLB Baseball, dual-signed; light signature smudge present as shown; Beckett BAS Witness hologram #3W367233\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) Witness — tamper-proof hologram affixed; in-person witnessed signatures documented by BAS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eEach autograph was witnessed by Beckett and linked to the matching hologram, giving you verified authentic signatures from one of baseball’s most memorable storylines. Beckett’s certification adds trusted third-party backing that supports the piece’s long-term collectability and value.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45540463116332,"sku":"256515","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_11_26_25_2020__91385.jpg?v=1778715892"},{"product_id":"stan-musial-signed-auto-rawlings-baseball-jsa-cn60110-copy","title":"Mark McGwire Steve Howe Multi Signed Auto Rawlings Baseball JSA CN60109","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade autographed memorabilia: a Rawlings baseball signed by Mark McGwire and Steve Howe, JSA certified (COA CN60109).\u003c\/strong\u003e Mark McGwire crushed 583 career home runs, won the 1987 AL Rookie of the Year, and set the single-season record with 70 in 1998; he also helped the Oakland A’s win the 1989 World Series. Steve Howe earned the 1980 NL Rookie of the Year and contributed to the Dodgers’ 1981 World Series title.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire, Steve Howe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Rawlings baseball, dual-signed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e JSA (James Spence Authentication), COA CN60109\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAuthenticated by JSA, this dual-signed baseball is verified authentic and collector-grade, giving you a trustworthy MLB piece tied to two award-winning careers. The independent certification and clear identification of both signatures support long-term value and make this a confident pickup for serious baseball memorabilia collectors.\u003c\/p\u003e","brand":"JP's Sports and Rock Solid Promotions","offers":[{"title":"Default Title","offer_id":45589399896108,"sku":"M15627","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/IMG_1897_c9de2268-3998-45e8-bb0b-c3aa9d1befbe.jpg?v=1780398558"},{"product_id":"mark-mcgwire-jose-canseco-autographed-official-al-baseball-oakland-as-beckett-bas-ag020286","title":"Mark McGwire \u0026 Jose Canseco Autographed Official AL Baseball Oakland A's Beckett BAS #AG020286","description":"\u003cp\u003e\u003cstrong\u003eCollector Grade, Beckett-authenticated autographed memorabilia: dual-signed Official American League baseball by Mark McGwire \u0026amp; Jose Canseco (Oakland A’s) — BAS #AG020286.\u003c\/strong\u003e The “Bash Brothers” powered the A’s to the 1989 World Series title. McGwire won the 1987 AL Rookie of the Year and made 12 All-Star teams, while Canseco captured the 1988 AL MVP and became MLB’s first 40–40 player.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Jose Canseco\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official American League Baseball (Oakland A’s), dual-signed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) tamper-proof hologram and matching full-page COA, Cert #AG020286\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAuthenticated by Beckett, this verified piece gives collectors confidence in the signatures and long-term value. A clean Official AL ball signed by both Bash Brothers is a strong, display-ready pickup for any serious Oakland A’s or MLB autograph collection.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45818455162924,"sku":"266739","price":239.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_7_17_26_1317__54816.jpg?v=1784337943"},{"product_id":"mark-mcgwire-sammy-sosa-autographed-official-mlb-baseball-smudged-beckett-bas-witness-3w367543","title":"Mark McGwire \u0026 Sammy Sosa Autographed Official MLB Baseball (Smudged) Beckett BAS Witness #3W367543","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade, authenticated autographed and signed memorabilia\u003c\/strong\u003e—an Official MLB baseball dual-signed by Mark McGwire and Sammy Sosa, with a visible signature smudge as shown. In 1998, McGwire set the single-season home run record with 70, while Sosa won the NL MVP and remains the only player with three 60+ HR seasons; together they led the electrifying home run chase that reignited the sport.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Sammy Sosa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official MLB Baseball, dual-signed (smudged)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) Witness Hologram #3W367543\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWitnessed and certified by Beckett under their BAS Witness program, this ball comes with a tamper-proof hologram that confirms both signatures were observed by a Beckett representative—supporting long-term value and buyer confidence. A verified authentic piece tied to the iconic 1998 home run race, ready for any serious baseball collection.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45857724235820,"sku":"256519","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_11_26_25_2097__31429.jpg?v=1785198662"},{"product_id":"mark-mcgwire-sammy-sosa-autographed-official-mlb-baseball-smudged-beckett-bas-witness-3w367482","title":"Mark McGwire \u0026 Sammy Sosa Autographed Official MLB Baseball (Smudged) Beckett BAS Witness #3W367482","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade, Beckett Witnessed autographed and signed MLB memorabilia\u003c\/strong\u003e Mark McGwire and Sammy Sosa defined the 1998 home run race that captivated baseball. McGwire, the 1987 AL Rookie of the Year and 1989 World Series champion, set a then-record 70 home runs in 1998. Sosa won the 1998 NL MVP, finished with 609 career homers, and is the only player with three 60+ HR seasons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Sammy Sosa\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official MLB Baseball, dual-signed; note a visible smudge in the signature as shown in photos\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) Witnessed with tamper-proof hologram #3W367482\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAuthenticated by Beckett (BAS) with an on-site witnessed hologram, this dual-signature ball is verified authentic and tied to one of baseball’s most memorable eras, helping protect long-term value for serious collectors.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45857724268588,"sku":"256520","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_11_26_25_2103__80954.jpg?v=1785198662"},{"product_id":"mark-mcgwire-sammy-sosa-autographed-official-mlb-baseball-smudged-beckett-bas-witness-3w367444","title":"Mark McGwire \u0026 Sammy Sosa Autographed Official MLB Baseball (Smudged) Beckett BAS Witness #3W367444","description":"\u003cp\u003e\u003cstrong\u003eAuthenticated Collector Grade autographed and signed MLB memorabilia—dual-signed by Mark McGwire \u0026amp; Sammy Sosa.\u003c\/strong\u003e In 1998, McGwire set a then-record 70 home runs while Sosa won NL MVP with 66, and their home run chase reignited national interest in baseball. McGwire finished with 583 career homers and the 1987 AL Rookie of the Year award, while Sosa hit 609 home runs and is the only MLB player with three 60-HR seasons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Sammy Sosa\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official MLB Baseball — dual-signed (note: light signature smudge as shown)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) Witness, tamper-proof hologram #3W367444\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWitnessed by Beckett on-site, this ball is verified authentic and comes with a matching BAS hologram, which supports long-term value for serious collectors. A sought-after dual-signed piece tied to the iconic 1998 home run race, it displays well and reflects the legacy of two 500+ HR sluggers—exactly as pictured with the noted smudge.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45857724301356,"sku":"256522","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_11_26_25_2115__85679.jpg?v=1785198662"},{"product_id":"mark-mcgwire-sammy-sosa-autographed-official-mlb-baseball-smudged-beckett-bas-witness-3w367443","title":"Mark McGwire \u0026 Sammy Sosa Autographed Official MLB Baseball (Smudged) Beckett BAS Witness #3W367443","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade, Authenticated autographed, signed memorabilia:\u003c\/strong\u003e Official MLB baseball dual-signed by Mark McGwire \u0026amp; Sammy Sosa, witnessed by Beckett (BAS). Note: one signature shows smudging as pictured. McGwire set the single-season home run record with 70 in 1998, won the 1987 AL Rookie of the Year, and finished with 583 career homers. Sosa captured the 1998 NL MVP, clubbed 609 career home runs, and is the only player with three 60-HR seasons—together they defined the 1998 home run chase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Sammy Sosa\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official MLB Baseball, dual-signed (smudged)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) Witness Hologram #3W367443\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAuthenticated by Beckett BAS with a tamper-proof witness hologram, this verified authentic piece brings together two of baseball’s most prolific sluggers. The certification supports long-term confidence in the signatures, while the ball itself reflects the lasting legacy of the 1998 home run race.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45857724334124,"sku":"256516","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_11_26_25_2079__09697.jpg?v=1785198662"},{"product_id":"mark-mcgwire-sammy-sosa-autographed-official-mlb-baseball-smudged-beckett-bas-witness-3w367302","title":"Mark McGwire \u0026 Sammy Sosa Autographed Official MLB Baseball (Smudged) Beckett BAS Witness #3W367302","description":"\u003cp\u003e\u003cstrong\u003eCollector Grade autographed, dual-signed Official MLB baseball memorabilia—Beckett BAS Witnessed.\u003c\/strong\u003e In 1998, Mark McGwire blasted a then-record 70 home runs while Sammy Sosa captured NL MVP with 66; their home run chase energized baseball. McGwire is a 1989 World Series champion and the 1987 AL Rookie of the Year, and Sosa belongs to the 600-home-run club and is the only player with three 60-HR seasons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAthletes:\u003c\/strong\u003e Mark McGwire \u0026amp; Sammy Sosa\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Official MLB Baseball, dual-signed; signature smudge and surface marks as shown\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) Witnessed; tamper-proof hologram #3W367302 supporting long-term value and buyer confidence\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis verified authentic, dual-signature ball comes with Beckett’s witness hologram and the documented background collectors expect. A meaningful piece of the 1998 home run race, it’s a solid collector-grade addition anchored by trusted BAS certification.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45857724366892,"sku":"256517","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_11_26_25_2085__00816.jpg?v=1785198662"}],"url":"https:\/\/www.pristinemarketplace.com\/collections\/mark-mcgwire-baseballs.oembed","provider":"Pristine Marketplace","version":"1.0","type":"link"}