The second-year running should be fine in a matter of days according to the Baltimore Sun. Though he sprained his knee against the Buccaneers Ravens backup running back won't spend much time away from the football. According to Aaron Wilson at the Baltimore Sun Pierce who injured his left knee at the end of a 20-yard touchdown run did not suffer any structural damage to his knee. Following Saturday's practice Harbaugh declined to comment on any injuries that he didn't deem serious which included Pierce's and receiver Deonte Thompson's (ankle).