Quarterback Josh Allen took a nasty hit in the fourth quarter of the Buffalo Bills ' 23-20 loss to the Houston Texans in Week 5. Allen's helmet appeared to bump the turf at NRG Stadium. Per Ryan Miller of Democrat and Chronicle, Allen completed a concussion evaluation in four minutes, a relatively fast time to check for a brain injury:

Buffalo Bills quarterback Josh Allen struggled mightily against the Houston Texans Sunday, but his play wasn't the only thing that landed him in the headlines this past week. During the game, Allen was briefly evaluated for a concussion in the medical tent after hitting his head on the turf—and returned to play almost immediately.

The NFL and its players association say the required steps were followed when Buffalo Bills quarterback Josh Allen was evaluated for a concussion last week at Houston and cleared to return to the game.