John Stiles says women's football is "a particular concern" after an inquest heard headers had contributed to his father's brain disease.
Related stories
Inside the neighbourhood club that made Arteta, Alonso and Iraola
From playing with Rashford to non-league and new career
Carrick 'convinced' by Man Utd squad following summer business
Celtic to rekindle Gineitis interest in January - gossip
Who are best Man City players to buy? FPL gameweek three dilemmas
Flex your football brain with our daily quizzes