Probably need another camp arm, is my guess. Someone needs to throw those thousands of passes.
http://espn.go.com/blog/pittsburgh-s...wski-activated
The team activated Gradkowski off the physically unable to perform list on Sunday, meaning the shoulder injury has healed and the 10-year veteran can start practicing today. He should get some run next Sunday at Heinz Field when the Packers come to town for a preseason game.