Cooper Flagg's 1-of-1 Rookie Card Just Sold for $8M USD, the Third-Highest NBA Card Sale Ever

SummaryDallas Mavericks player Cooper Flagg's one-of-one rookie debut patch autograph card auctioned for over $8 millionThe monumental transaction ranks as the third-most expensive NBA trading card sale in historyA collector originally pulled the card through a $515 spot in a livestreamed break before consigning it to auctionThe trading card market just witnessed a monumental transaction centered on Dallas Mavericks player Cooper Flagg. Early Friday morning, Cooper Flagg's one-of-one Top...