The family of former Chicago Blackhawks defenseman Steve Montador plans to file a lawsuit against the NHL after findings that he suffered from "widespread chronic traumatic encephalopathy, or CTE, the disease associated with repeated hits to the head," according to the New York Times.
Montador died in February at the age of 35 after a 10-year NHL career during which he had several head injuries, including a major concussion in 2012 with the Hawks that eventually led to his retirement. His cause of death has not been made public, but symptoms of CTE include memory loss, depression and impulse control.