Joakim Noah suffered a sprained ankle in the Chicago Bulls' loss on Wednesday to the Washington Wizards.

Noah left the United Center in a walking boot.

"It's going to be huge when you lose a player like Jo with his energy and just his size," Derrick Rose said. "Because we're a big team and we got a lot of big guys, but losing a seven footer on any team, a starting seven footer, I think it would hurt any team."

Noah hasn't appeared healthy all season after arthroscopic surgery on his left knee last May.

Noah missed four games earlier in the year because of the same ankle and knee injuries.