Victor Wembanyama was ruled out of Saturday's game against the Dallas Mavericks after spraining his right ankle when stepping on a ball boy during his pregame warmup.

The ball boy was standing on the baseline when Wembanyama stepped on his foot after making a driving layup over a Spurs assistant coach.

Wembanyama had the ankle retaped, but the Spurs ruled him out.

Wembanyama previously missed a game this week due to soreness in his right ankle.