The <a href="http://www.thenational.ae/topic/organisations/sports-teams/nfl-teams">Pittsburgh Steelers</a> escaped with a 16-13 overtime victory against the <a href="http://www.thenational.ae/topic/organisations/sports-teams/nfl-teams">Kansas City Chiefs</a> - but must wait to find out the full cost of it after losing quarterback Ben Roethlisberger to a shoulder injury. In a rain-soaked war of attrition in which Kansas City forced overtime with a late fourth-quarter drive, Pittsburgh ended the Chiefs' resistance soon after when a Lawrence Timmons interception set up Shaun Suisham's 23-yard winning field goal. The Steelers (6-3) needed just 51 seconds of the extra session to seal a fourth straight victory that kept them one game behind the <a href="http://www.thenational.ae/topic/subjects/nfl">AFC North</a>-leading Baltimore Ravens. Pittsburgh were expected to easily see off the struggling Chiefs (1-8) but the game did not follow the script and the home team battled to overcome a 10-0 deficit and a Roethlisberger shoulder injury that ended his game in the third quarter. Roethlisberger tossed a first-half touchdown to tie the game at 10-10 by the intermission but his duties were turned over to backup Byron Leftwich after taking a big hit on the opening drive of the second half. The Steelers edged 13-10 ahead early in the fourth quarter before Kansas City rallied on their final drive to set up Ryan Succop's game-tying 46-yard field goal. sports@thenational.ae Follow us