Cooper Flagg's Jersey From 'One of the Worst Games' of His Life Sells for Over $95,000

When Cooper Flagg made his debut for the Dallas Mavericks in the NBA Summer League, he didn't have a particularly good game. In fact, one could say that it was a performance the former Duke Blue Devils star would rather forget.

Against the Los Angeles Lakers, Flagg finished with 10 points, six rebounds, four assists and three steals. However, he shot just 5-of-21 from the field, including 0-of-5 from deep.

After the contest, the No. 1 overall pick of the 2025 NBA Draft expressed his disappointment about his performance, although he emphasized that he's happy the team got the 87-85 win.

"That might be one of the worst games of my life, but we got the win — so that’s what really matters to me," Flagg told reporters.

Flagg's Summer League Jersey Still a Big Hit

While Flagg was not happy with his Summer League debut, it didn't stop sports memorabilia collectors from bidding on his jersey from the game.

According to Sotheby's, the item sold for $95,250 at auction. The item description stated: "This neutral ‘White Summer League’ jersey was worn by Cooper Flagg on July 10, 2025 during the NBA 2K26 Summer League, when the Dallas Mavericks played the Los Angeles Lakers. This is the first jersey worn by Cooper Flagg in the NBA 2K26 Summer League in Las Vegas, NV. This is the first NBA jersey worn by Flagg."

The auction house also confirmed the authenticity of the jersey, noting that the "jersey has been photomatched by Sotheby’s Photomatching."

High Expectations Await Cooper Flagg in First NBA Season