Everything you need to know about the out former NFL player Dave Kopay. He became the first NFL player to come out and gave an interview to The Advocate in 1976. He later wrote The David Kopay Story, a best-seller in 1977. Though he did apply for coaching jobs in the NFL and college football, Dave Kopay said he largely believes he was turned away because of his sexual orientation. Only a handful of professional athletes have come out since Kopay, but his story endures as more young athletes look to his example and guidance in their own coming out.