Their franchise quarterback on his way to the hospital, the momentum firmly on the other side of the field after a stunning last-minute rally by one the NFL's worst teams, the Pittsburgh Steelers appeared lost. Then linebacker Lawrence Timmons provided a reminder that -- Ben Roethlisberger or no Ben Roethlisberger -- Pittsburgh's identity begins and ends with defense. Timmons intercepted Kansas City quarterback Matt Cassel on the second snap of overtime and Shaun Suisham drilled a 23-yard field goal one play later to lift the Steelers to a 16-13 victory over the hapless Chiefs.