College football legend Reggie Bush says he's fighting like hell to get his Heisman trophy back ... but claims both the NCAA and the Heisman Trust are giving him the stiff arm.
Bush forfeited his 2005 trophy back in 2010 when the NCAA ruled the running back had received improper benefits while at USC ... which vacated his stellar junior season with the Trojans.
Now -- on the day NCAA athletes have been given the green light to make money off their name, image and likeness -- Bush addressed his efforts to have his beloved trophy returned .