NEW : Ex - player Duerson , who killed himself , would approve of the suit , his widow says . NFL 's failure to act has led to the deaths and serious injuries of former players , a lawyer says . he was aggravated a lot , '' she said . The lawsuit filed by 75 former NFL players asks for a jury trial and damages . An NFL spokesman says the league will ` ` vigorously contest '' such claims .
NEW : Ex - player Duerson , who killed himself , would approve of the suit , his widow says . NFL 's failure to act has led to the deaths and serious injuries of former players , a lawyer says . The lawsuit filed by 75 former NFL players asks for a jury trial and damages . An NFL spokesman says the league will ` ` vigorously contest '' such claims .