PITTSBURGH — Steelers quarterback Ben Roethlisberger has returned to practice a day after he limped off the field following a collision with running back Willie Parker.

Roethlisberger had his left knee wrapped on Thursday in the only sign of the mishap that occurred during the team's optional offseason workouts.

Roethlisberger apparently did not require treatment following the collision, although he was seen limping out of the Steelers' practice complex shortly after the workout ended Wednesday.