Celtics point guard Rajon Rondo will miss a couple of weeks due to a sprained left ankle, according to president of basketball operations Danny Ainge.

Rondo rolled his ankle in the fourth quarter of Wednesday night's 118-116 victory over the Knicks.

"Rajon, I think, will be out for a couple of weeks, anyway," Ainge said, according to WEEI.

"I think that Rajon is young, and he heals fast and he loves to play, to his credit. I couldn't believe he was back on the court last night. He wasn't moving very well, even when he got back out on the court. You could tell he was still in a lot of pain, and certainly after the game it started puffing up. This morning there was a lot of swelling, and he definitely needs some time off."

Nate Robinson will start in Rondo's place.