Report: Byron Leftwich doubtful, Steelers to work out QBs

Byron Leftwich is a doubt for this Sunday's game. (Doung Pensinger, Getty Images) The Pittsburgh Steelers could be without the services of backup quarterback

Byron Leftwich is a doubt for this Sunday's game. (Doung Pensinger, Getty Images)

The Pittsburgh Steelers could be without the services of backup quarterback Byron Leftwich this weekend, just one week after he replaced injured starter Ben Roethlisberger. CBS Sports' Jason La Canfora reports on Twitter that the team is now planning on working out free agent quarterbacks this week to sign in case both Leftwich and Roestlisberger are unable to go on Sunday.