Cooper Flagg's Rookie Debut Patch Card Poised to Challenge Million-Dollar Record

Dallas Mavericks rookie Cooper Flagg's Rookie Debut Patch Autographed card is generating significant buzz, with speculation it could surpass the $1.1 million record set by Paul Skenes' MLB card. Fanatics is introducing Rookie Debut Patches for the upcoming NBA season, and Flagg's card is already highly coveted. Factors boosting its potential value include the NBA's massive international appeal, particularly in Asia, and the strong market for modern NBA cards, which have seen sales up to $12.9 million in 2025. The NBA season begins October 21, with Flagg's debut game on October 22. If Flagg performs as expected, his card could become the most expensive Rookie Debut Patch card ever, driven by a robust international market and high-end private collectors.