Carl Nassib, first openly gay NFL player, to be released by Raiders
Gay NFL Players: The 14 Men Who Came Out After Their Careers
Tokyo Games shaping up as a watershed for LGBTQ Olympians
Carl Nassib comes out as first active openly gay NFL player
Ryan Russell, N.F.L. Free Agent, Comes Out as Bisexual: 'It's So Much Better Than Hiding' - The New York Times
How Carl Nassib's Coming Out Made NFL History : NPR
Homosexuality in American football - Wikipedia
Professional Athletes Who Identify As LGBTQ
Over 160 LGBTQ athletes will compete at Olympics, setting global record
NHL players gearing up to use Pride Tape despite league ban? - Outsports