Leading scorer Gerald Wallace is doubtful for the Charlotte Bobcats' game Wednesday night against San Antonio because of a mild concussion.

Wallace, averaging 16.5 points, hit his head on a drive to the basket in the second quarter of Charlotte's 95-91 overtime loss Monday against Utah. He did not play in the second half and missed practice Tuesday.

Coach Bernie Bickerstaff said the team will be cautious with Wallace, who missed four games last December with a concussion.

"It's completely up to the doctors," Bickerstaff said. "I talked with him early this morning and he's just very sore."