Steelers quarterback Ben Roethlisberger has a sprained thumb, which might force him to miss Saturday's preseason game against Minnesota. The injury could add fuel to a debate rekindled by Colts coach Tony Dungy earlier this week over whether the NFL's training camp season is too long and too dangerous. Dungy told reporters Wednesday in Terre Haute that he thinks the day might be coming when training camp is reduced from two daily practices to one, and not always in full pads, in an attempt to cut down on the number of injuries to marquee players before the first official game.

The Colts were missing more than 20 players during practices Wednesday and Thursday, including wide receiver Brandon Stokley, who was injured at the end of Monday's practice and could miss at least a month. Roethlisberger and Steelers coach Bill Cowher say they don't think his injury is serious, but it's another reminder of how easily a franchise player can be lost during the NFL's exhibition season.

-- John Dudley