Chicago Bulls point guard Derrick Rose arrived at Sunday's film session wearing a walking boot.

Rose did not participate in the shootaround after the team watched film. He is expected to get an MRI on Sunday afternoon and will be re-evaluated by team doctors at that time. The MRI was precautionary, according to Bulls coach Tom Thibodeau.

Rose turned his ankle driving to the basket late in the first quarter. He didn't appear to make contact with any other player.

"I really can't explain it," Rose said Saturday. "I just took off wrong and my weight just pushed over my ankle and it ended up twisting."