Cooper Flagg debuted his New Balance sneakers during his first Dallas Mavericks media day. When will Flagg debut his own signature shoe?

Cooper Flagg made his first appearance for the Mavericks in Las Vegas during his professional debut at the NBA Summer League.

In his second Summer League outing, the 18-year-old Flagg put up a game-high 31 points while shooting 10-for-21 against the Spurs on Saturday. The Mavericks ultimately lost the game 76-69, with incoming rookie Dylan Harper leading the way with 16 points, six rebounds and two steals for San Antonio.