Stephon Gilmore left Sunday's loss to the Raiders after being evaluated for a concusion and did not return, BuffaloBills.com reports.

Gilmore left Sunday's loss to the Raiders, after being evaluated for a concusion and did not return, BuffaloBills.com reports.

Analysis:

If he does have a concussion, he'll have to go through the league's protocol, before he's allowed to suit up for the season finale at New England. Gilmore had just one tackle before departing.