PITTSBURGH (AP) – The Pittsburgh Steelers escaped with a victory. The health of their franchise quarterback is another matter entirely. The Steelers edged the woeful Kansas City Chiefs 16-13 in overtime on Monday night but lost Ben Roethlisberger for most of the second half – and perhaps a lot longer – with a right shoulder injury. Roethlisberger left the game early in the third quarter after getting slammed to the turf by Kansas City linebackers Tamba Hali and Justin Houston and did not return. The Steelers (6-3) won their fourth straight anyway. Shaun Suisham kicked a 23-yard field goal 51 seconds into the extra period, one play after Lawrence Timmons intercepted Kansas City’s Matt Cassel and returned to the 5. Jamaal Charles ran for 100 yards and a score for the Chiefs (1-8), who have lost six straight.