With second round pick Mikel Leshoure already out for the year, the Lions are counting on Jahvid Best to stay healthy.
The second year pro, who battled turf toe last year, suffered some sort of injury Friday night.
The Lions would only say that Best was taken to the locker room for observation. It appeared trainers may have been giving Best concussion tests on the sideline, but that has not been disclosed. Best had a lot of concussion issues in college.
Best returned to the sideline with his helmet off after halftime.