Steelers' Byron Leftwich to start in place of QB Ben Roethlisberger Pittsburgh Steelers quarterback Byron Leftwich steps back to pass in the fourth quarter of the 16-13 overtime win at Heinz Field in Pittsburgh on November 12, 2012. The Steelers back-up quarterback stepped for the injured Ben Roethlisberger early in the third quarter of the game. PITTSBURGH, Nov. 14 (UPI) -- Byron Leftwich will start at quarterback Sunday for the Pittsburgh Steelers in place of the injured Ben Roethlisberger, the NFL team said Wednesday. Roethlisberger was injured early in the second half of the Steelers' game Monday against Kansas City. He has since been diagnosed with a sprained sternoclavicular joint in his right shoulder. Leftwich finished Monday's game at quarterback for Pittsburgh, which won 16-13 in overtime. Leftwich, in his 10th season in the NFL, is 24-25 as a starter. Sunday's home game against the Baltimore Ravens will mark Leftwich's first starting assignment since Sept. 27, 2009, when he was playing for the Tampa Bay Buccaneers. Pittsburgh (6-3) is one game behind Baltimore in the AFC North standings. Leftwich completed 7-of-14 passes Monday for 73 yards. In his career, he's completed 58.2 percent of his passes for 10,333 yards with 58 touchdowns and 41 interceptions.