(July 8, 2016, 1:16 PM EDT) -- CHICAGO — A former National Football League (NFL) player sued a helmet maker in Illinois state court on July 7, claiming that the helmet maker led players to believe that their helmets would protect them from head injury (Paul Hornung, et al v. BRG Sports LLC, et al., No. 2016-L-006686, Ill. Cir., Cook Co.)....