The Topps 2026 Allen & Ginter World's Champions #129 Mark McGwire A's trading card is a highly sought-after collectible for baseball fans and card collectors. This original card features Mark McGwire of the Oakland Athletics as a World's Champion from the 2026 season. Manufactured by Topps, the card is made of high-quality card stock and is in near mint condition. The card showcases unique artwork and is a valuable addition to any sports trading card collection.