A 1-of-1 numbered, autographed Caitlin Clark rookie card went straight to auction and sold for a record $660,000.

Another Paul Skenes 1-of-1 has sold. Bidding for the 2024 Topps Update Paul Skenes Platinum 1-of-1, graded a PSA Mint 9, ended Sunday, April 27 at 11:58 p.m. and sold for a whopping $22,800. The ...

Recently 2025 Topps Tier One Baseball produced a 1 of 1 Even Longoria card that not only features his on-card auto, but a game-used bat knob with the iconic Pokémon character Charizard. SI.COM ON SI ...