Kevin Acee of the Union-Tribune San Diego believes Chargers undrafted rookie LT Mike Harris has already earned a roster spot. Camp just started, but Harris is already working with the first-team offense in Jared Gaither's (back) absence. Harris measured 6-foot-5, 309 and ran a 5.46 forty at UCLA's March Pro Day. He may be San Diego's 2012 swing tackle.