Pittsburgh Steelers defensive end Stephon Tuitt tore a pectoral muscle and will need surgery that will put him out for the rest of the season, sources told ESPN's Chris Mortensen.
Tuitt sustained the injury in Sunday night's 24-17 victory over the Los Angeles Chargers that improved Pittsburgh to 2-4.
Tuitt, in his sixth season with the Steelers, has 22 tackles and is tied for second on the team with 3.5 sacks.