CHICAGO -- Pro Football Hall of Famer and former Heisman Trophy winner Paul Hornung sued equipment manufacturer Riddell Inc. on Thursday, saying football helmets that he wore during his professional career in the 1950s and 60s failed to protect him from brain injury.Attorneys for the 80-year-old Hornung filed the civil lawsuit in Cook County Circuit Court in Chicago, naming the Rosemont-based company as the defendant. It seeks unspecified damages.Hornung suffered multiple concussions as a running back for the Green Bay Packers and has been diagnosed with dementia, the lawsuit says. It said that the neurodegenerative disease has been linked to repetitive head trauma.Concussion lawsuits from athletes have become more common in recent years amid growing awareness about the long-term consequences of repeated blows to the head and Riddell is also fighting litigation elsewhere. But suits from athletes whose playing days were as far back as the 1950s are rare.Riddell began producing helmets out of plastic in 1939, touting them as safer alternatives to ones -- more common at the time -- fashioned from leather, according to the eight-page filing. Hornung, it says, wore a leather helmet when he played for Notre Dame in college but switched to the Riddell-made plastic helmets in the NFL.Erin Griffin, a spokeswoman for Riddell, declined comment in an email, saying, Its our policy not to comment on pending litigation.Hornung won the Heisman in 1956 while at Notre Dame, where he played quarterback. The Packers selected him as the No. 1 overall draft pick a year later. He was the NFL MVP in 1962 and he played on four championship teams (1961, `62, `65 and `66).One of Hornungs lawyers said Riddell knew enough about the perils of concussions more than five decades ago to warn players.Studies dating back to the 19th century linked head trauma to permanent brain damage, but Riddell failed to communicate the danger to Mr. Hornung, the attorney, William T. Gibbs, said in a written statement.Hornungs wife, Angela Hornung, is also named as a plaintiff in the suit, which says she suffered and will continue to suffer the loss of her husbands affection and companionship as a result of his injuries.Riddell has successfully fought some litigation. A Los Angeles jury in 2014 found that Riddell wasnt liable for the severe brain injury of a high school football player who suffered a helmet-to-helmet hit during a game.Riddell, which provides helmets to every level of football -- from the pros to Pop Warner -- has said publicly previously that it has devoted enormous resources to developing equipment that can reduce the risk of a devastating head injury.---Follow Michael Tarm on Twitter at http://twitter.com/mtarm San Diego Padres Jerseys . Patrice Bergeron and Daniel Paille scored 20 seconds apart a few minutes after Stamkos was taken off the ice on a stretcher with a broken right leg, and the Bruins beat the Lightning 3-0 on Monday afternoon. Allen Craig Jersey . On Saturday night, the normally free throw-challenged centre did just that. 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A panel of ESPN baseball experts is forecasting Los Angeles Dodgers?manager Dave Roberts?and Cleveland Indians manager Terry Francona?to win the American League and National League Manager of the Year awards, respectively, when the honors are announced Tuesday between 6 and 7 p.m. ET.We had 27 experts pick who they think will win in the NL ?and 26 pick the AL (Christina Kahrl didnt reveal her AL pick). The voting breakdown for the awards is listed below as well as the votes of our experts.Who will win the AL Manager of the Year award?1. Terry Francona Cleveland Indians VOTES: 24Brought the Indians to the playoffs for the second time in four seasons in Cleveland, getting within one win of the franchises first title since 1948. In four seasons in Cleveland, Francona is 352-294 (.545) and is 1,381-1,209 overall, including eight seasons in Boston and four in Philadelphia.2. Buck Showalter Baltimore Orioles VOTES: 2In seven seasons in Baltimore, Showalter has led the Orioles to the playoffs three times, including in 2016 as a wild-card team. His record with the Os is 547-482 (.532) and overall with four teams he is 1,429-1,315.ddddddddddddho will win the NL Manager of the Year award?1. Dave Roberts Los Angeles Dodgers VOTES: 14In his first season with the Dodgers, Roberts led the team to first place in the NL West and the NLCS, losing to the Cubs in six games. Roberts managed around a number of injuries in 2016, with the Dodgers setting an MLB record by sending 28 different players to the DL.2. Joe Maddon Chicago Cubs VOTES: 9In two seasons in Chicago, Maddon has led the Cubs to the playoffs twice and to their first World Series title since 1908. His second in two seasons in Chicago is 200-123 (.619 winning percentage), including a 103-58 mark in 2016.3. 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