Cooper Flagg to open trading card shop in Maine on September 12
Yahoo Sports • 1 min read • Latest: Aug 30, 2026, 4:02 PM
Last updated Aug 30, 2026
Cooper Flagg, a former Duke forward currently with the Dallas Mavericks, plans to open a trading card shop named Flagg Trading Co. in Maine. The grand opening is scheduled for September 12. Flagg has been involved in card collecting since joining the NBA and has participated in trading card events, including purchasing cards from his former teammate Kon Knueppel. His debut patch rookie autos are set to be auctioned next month.
- •Cooper Flagg is a current player for the Dallas Mavericks.
- •The trading card shop will open in his home state of Maine.
- •Flagg is an active card collector and engages in trading card events.
- •He plans to auction unique rookie cards next month.
- 4:02 PMYahoo Sports — Former Duke forward Cooper Flagg to open trading card shop in Maine
"Current Dallas Mavericks forward Cooper Flagg is preparing to open up a trading card shop in his home state of Maine.
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