The second-year QB was limited in practice on Wednesday and Thursday before practicing fully on Friday. He is officially questionable to play against the Tennessee Titans.
While Allen remains in protocol, coach Sean McDermott added that if Allen clears before Sunday's game, he'd be comfortable starting the QB versus Tennessee, per Chris Brown of the team's official website.
Not passing through protocol Friday means the light is dimming for Allen's availability this week, but Saturday should give us a clearer picture of the QB's status. Allen must be cleared by an independent neurologist.