San Antonio Spurs star Victor Wembanyama missed Saturday's game against the Dallas Mavericks after he rolled his ankle on a ball boy's foot during pregame warmups.

Video captured the incident as Wembanyama participated in a pregame layup drill. He stumbled after landing and stepped on the ball boy's foot with his right foot, rolling his ankle.

The Spurs announced that Wembanyama went to the locker room to have his ankle taped before being ruled out for precautionary reasons. Wembanyama missed Tuesday's loss to the Milwaukee Bucks with soreness in the same ankle. The Spurs didn't announce a prognosis or if Wembanyama was expected to miss more time.

The Mavericks won Saturday's game, 144-119. Luka Doncic led the way with a 39-point, 12-rebound 10-assist triple-double.

The loss was the 22nd in 23 games for the Spurs, who are rebuilding around Wembanyama after selecting him with the first pick in June's NBA Draft. The 7-foot-4 French sensation is averaging 18.5 points, 10.7 rebounds, 2.8 assists, 3.0 blocks and 1.4 steals per game while shooting 43.5% from the field and 27.9% from 3-point distance. The Spurs next face the Utah Jazz on Tuesday.