Free agent Clinton Portis is intent on returning to the NFL after sitting out last season. Portis has been medically cleared by private doctors after battling concussions and an assortment of leg injuries that limited to just eight games in 2009 and five in 2010. His agent claims a "handful" of teams have already shown interest, however tepid that may be. With evaporated playmaking ability, Portis won't offer more than pass blocking and perhaps short-yardage prowess at age 31.