EmailPrintOpen Extended ReactionsCooper Flagg's coveted one-of-one numbered rookie debut patch autograph card was found in Rhode Island on Monday night.RhodyBreakers, a division of Baseball Cards of Rhode Island that opens boxes of trading cards on a live stream for clients, were on a stream when they pulled the much sought-after card.The card, which Flagg signed during Fanatics Fest last month, has drawn significant attention -- including from the Dallas Mavericks themselves, who offered a "bounty" in exchange for the piece of memorabilia.The jersey Flagg wore in the first half of his NBA debut -- which the card's patch is made from -- sold for $1 million in February. A similar exclusive card featuring Pirates star pitcher Paul Skenes sold for $1.11 million last year, leading to speculation that Flagg's card could fetch at least as much in an auction.The winner of Flagg's card will be hard-pressed to part with it but the Mavericks recently made their case with an offer that includes two Mavericks premium season tickets for 32 years, a signed, game-worn Flagg rookie jersey plus a postgame photo with the star, a private photo shoot with the Rookie of the Year trophy, an expenses paid road-trip with the team and more.Flagg's one-of-one card headlines the first crop of basketball's rookie debut patch autograph cards, which were released last week as part of the 2026 Topps Chrome Update Basketball set. The set also features cards from other Class of 2025 players like Kon Knueppel and Dylan Harper.The current high paid for any Flagg card is $366,000 in a March auction.ESPN's Anthony Gharib contributed to this report.
