PITTSBURGH -- Levi Brown's season with the Pittsburgh Steelers ended before it even began.
The Steelers placed the offensive tackle on injured reserve Tuesday after Brown tore his triceps during warmups before last Sunday's game against the New York Jets. Pittsburgh acquired Brown last week from the Arizona Cardinals. Coach Mike Tomlin said Brown will need surgery.
The Steelers also put tight end David Johnson on injured reserve with a wrist injury that will also require surgery. Pittsburgh signed free agent tight end Richard Gordon, a former Oakland Raider, and promoted cornerback Isaiah Green from the practice squad.
The Steelers activated LB Sean Spence off the physically unable to perform list. Spence hasn't played since tearing multiple ligaments in his left knee in the final game of the 2012 preseason.