The Steelers running back prompted a firestorm with a tweet posted one day after Osama bin Laden's death:
What kind of person celebrates death? It's amazing how people can HATE a man they have never even heard speak. We've only heard one side...
In a subsequent tweet in response to University of Illinois basketball player Dominique Keller, Mendenhall suggested a 9/11 conspiracy (I just have a hard time believing a plane could take a skyscraper down demolition style.) The insensitive comments cost Mendenhall the endorsement deal he'd recently signed with Champion.