Even though public opposition to same-sex marriage and gay rights is rapidly eroding, the locker rooms and clubhouses of the country's four major sports leagues remain among the last bastions of homophobia in the U.S.
Consider the numbers. About 4,000 players spent time on active rosters in the NBA, NHL, NFL and Major League Baseball in 2012. With the best estimates of the gay/bisexual population in U.S. ranging from 2% to 10%, it's likely many of those 4,000 athletes are gay or bisexual.
Yet not one has come out of the closet. Not this year, not last year, not ever.