Buffalo Bills (3-1) quarterback Josh Allen briefly exited Sunday’s Week 5 road tilt against the Houston Texans (3-1) after getting his head slammed into the turf in the fourth quarter. Allen, flushed out of the pocket on third down, was hit as he threw by Texans defensive lineman Mario Edwards Jr. Allen was evaluated for a head injury in the blue medical tent, making way for Mitchell Trubisky. He came back into the game after just one play. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! Allen, one of the MVP frontrunners entering Sunday…