Buffalo quarterback Kevin Kolb was treated for concussion-like symptoms after getting kneed in the back of the helmet in the Bills' preseason game Saturday against the Washington Redskins. Kolb was hurt at the end of an 8-yard scramble in the first quarter. He remained in the game for four more plays, until the drive ended with a 2-yard touchdown run by C.J. Spiller. Kolb has been competing for the starting job with first-round pick EJ Manuel, but Manuel hurt his left knee in the Bills' previous game and is out for the rest of the preseason. Kolb was 2 for 4 for 16 yards and had two runs for 12 yards Saturday when he left the game. Source: Associated Press