Taj Gibson sprained his right ankle in Chicago's win over Indiana on Saturday night.

X-rays taken after the game were negative, but Gibson said he could barely put any weight on the ankle.

Replays appeared to show Gibson getting tangled up with the foot of teammate Ronnie Brewer, but the forward isn't sure what happened.

"I didn't remember hitting anybody," Gibson said. "I just remember my foot giving. It twisted real bad."

Gibson is averaging 7.4 points and 5.7 rebounds in 22.6 minutes per game this season.