Titans running back Shonn Greene suffered a right knee injury during the Week 1 game at Pittsburgh. He left the game in the first half and returned in the second on the sideline with an ice pack on his knee, The Tennessean reports. Greene, who could not return in the second half and is questionable for Week 2 at Houston at this point, rushed four times for 18 yards in the game before leaving. He did not make a catch. Greene may have been the beneficiary of a touchdown had he not gotten injured. Source: CBS Sports