Wade Davis: Courage by Michael Sam, others paved way for Carl Nassib - Sports Illustrated
Before Carl Nassib, Michael Sam was the NFL's first openly gay draft pick. He never played a regular season game.
Carl Nassib, first openly gay player in NFL, announces retirement: I'm ready to move on - CBS News
Cheers for Carl Nassib Show a Changing Football Culture - The New York Times
Former Malvern Prep, Penn State defensive end Carl Nassib retires from football
Only Openly Gay NFL Player Takes Personal Day After Gruden's Homophobic Emails Revealed
Who is Carl Nassib? The First Openly Gay NFL Player - The New York Times
The N.F.L.'s Carl Nassib Broke a Barrier. Will Others Follow? - The New York Times
Carl Nassib of Las Vegas Raiders becomes first active NFL player to announce he is gay
Carl Nassib Made History, but Also a Big Play - The New York Times
Carl Nassib, First Openly Gay NFL Player, Retires After 7-Year Career
Carl Nassib comes out as 1st openly gay active NFL player - ABC News