Steelers' Mendenhall strains hamstring

As was the case with Lawrence Timmons last year, this year's first-round pick, Rashard Mendenhall, suffered an injury during his first minicamp practice and will sit out the remainder of the camp.

In other news, Ben Roethlisberger will miss at least one practice, excused by head coach Mike Tomlin for undisclosed personal reasons.

Finally, the Steelers have signed a rookie free-agent wide receiver Kevin Marion, who caught 44 passes for 485 yards and one touchdown during his college career at Wake Forest.