Doug Martin's head injury doesn't seem to be too serious, as the running back said he passed his concussion tests,via the Tampa Bay Times. The back suffered a head injury after taking a knee to the head from Chandler Jones as Martin was trying to block the defensive end in pass protection.
Had Martin suffered a concussion, his participation in future games would have been in question. As it is, he should be able to play in next week's all-important third preseason game against the Miami Dolphins.
The Bucs had issues moving the ball against the Patriots all game in what was a sloppy and disappointing effort against, admittedly, a pretty good team. If Tampa Bay were to lose Martin for any stretch of time, those issues are going to get a lot worse, given the fact that the Bucs lack a capable backup. The one redeeming factor: Carl Nicks and Davin Joseph should return soon.