On Monday evening, hours after his story appeared on the web, Collins wrote on Twitter: "All the support I have received today is truly inspirational. I knew that I was choosing the road less traveled but I'm not walking it alone."
Momentum has been building toward this sort of announcement from a pro athlete in a top league in the United States. NFL players Brendan Ayanbadejo and Chris Kluwe were outspoken in support of state gay-marriage amendments during last year's elections. Obama spoke about his support for gay marriage during his campaign.
The topic made waves during Super Bowl week when one player, San Francisco 49ers cornerback Chris Culliver, said he wouldn't welcome a gay member of his team. At the time, Ayanbadejo estimated that at least half of the NFL's players would agree with what Culliver said, at least privately.
On Monday, NFL Commissioner Roger Goodell sent a memo to teams reiterating the league's anti-discrimination policy about sexuality. It includes a section on questions teams cannot ask prospective draft picks and free agents. After the NFL combine in February, three players said officials posed questions about sexual orientation.
Earlier this month, the NHL and its players' union partnered with an advocacy organization fighting homophobia in sports, and Commissioner Gary Bettman said the You Can Play Project underlines that "the official policy of the NHL is one of inclusion on the ice, in our locker rooms and in the stands."
"I would say the NHL has been a force to kind of obviously embrace and encourage. ... What (Collins) did, I think it's definitely (good) for basketball, and the same for hockey, too. It's going to be encouraging for more guys to step up and just be open about themselves," Washington Capitals forward Joel Ward said.