Pittsburgh Steelers defensive end Brett Keisel suffered a left knee injury late in the second half of the Sunday game against the Cleveland Browns and he will not return for the second half.
The Browns lead the Steelers 31-10 late and the team was already without with nose tackle Steve McLendon (shoulder), defensive end Cameron Heyward and Mike Mitchell (ankle) when Keisel exited as all three were injured during the game.
Steelers head coach Mike Tomlin will likely update the injury situation after the game.