San Antonio Spurs All-Star forward Tim Duncan sprained his left knee and right ankle after getting tangled with an opponent and had to be helped off the court in the first half of Saturday night’s game against the Washington Wizards.

The severity of the injury was not immediately known, though the team announced it was a sprain and that Duncan would not return to the game.

Duncan lay on the court clutching his knee for a few minutes after Wizards forward Martell Webster rolled into the back of it while fighting for a rebound.

via The Associated Press