McCourty left in the fourth quarter of Monday's win over the Cardinals to be evaluated for a head injury, Mike Reiss of ESPN.com reports.
McCourty entered the medical tent after being involved in a hard tackle, but no official word on whether he suffered a concussion was reported. He did tell Andrew Callahan of the Boston Herald that he was fine after the game, so it would appear he did not, but no official word on his status has been reported. His practice level in the days ahead should shed a better light on his abilities to suit up Sunday against the Raiders.