During Paul Hornung's nine-year NFL career, he helped the Green Bay Packers win four NFL championships.
The former running back also took a beating, and is now suing football equipment manufacturer Riddell, claiming the company's helmets failed to properly protect him.
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In a lawsuit filed Thursday in Cook County (Ill.) Circuit Court that names Riddell as the defendant, Hornung's attorneys claim the 80-year-old Hornung suffered multiple concussions as a player and has since been diagnosed with dementia. The suit seeks unspecified damages, according to the Associated Press.