Chicago Bulls guard Derrick Rose said he was unsure if he would be able to play in Sunday’s game against the Boston Celtics.

Rose sat out Friday’s romp over the Charlotte Bobcats due to backs spasms.

He played limited minutes in Wednesday’s win over the New Orleans Hornets and was removed from Monday’s game due to tightness in his back.

The reigning MVP has been receiving massages and other treatments in an attempt to alleviate the problem.

C.J. Watson started Friday’s game in place of Rose, who is averaging 22.0 points and 7.8 assists this season.