Williams was evaluated by a specialist over the weekend and was ruled out for the next two weeks, it was announced Monday before the Clippers played the Hornets.
"It's going to be at least a couple of weeks and then we'll re-evaluate him then," Clippers coach Vinny Del Negro said. "It's going to be at least a couple of weeks, that's what the specialist said."
Williams is averaging 13.6 points and 3.1 assists per game for the Clippers this season and is one of the candidates for the NBA's Sixth Man of the Year award. He has been the Clippers' third leading scorer behind Blake Griffin and Chris Paul since Chauncey Billups was lost for the season with a ruptured Achilles tendon last month.