Bills RT Erik Pears returned to the field on Tuesday. After battling groin problems dating back to last season, Pears has been doing individual position drills for a few weeks. Finally healthy, he was rotated in with the first-team at right tackle on Tuesday. Although Pears was considered a candidate for release coming into OTAs, his presence is needed since the Bills have been hit with a rash of injuries at offensive tackle. Chris Hairston remains the favorite to start once healthy.