FILE - In this Sept. 15, 1985, file photo, Chicago Bears quarterback Jim McMahon messages his head and neck after an NFL football game against the New England Patriots in Chicago, Ill. McMahon spoke Tuesday, June 17, 2014, about his ongoing battle with dementia that he believe is related to his years of hits he took while playing in the league. McMahon is part of a federal lawsuit filed in San Francisco accusing teams of illegally dispensing powerful narcotics and other drugs to keep players on the field without regard for their long-term health. He led the Chicago Bears to victory in the 1985 Super Bowl. (AP Photo/John Swart, File)