Robbie Rogers decides to continue his career in soccer as an openly gay athlete by joining the LA Galaxy. The MLS season started in the beginning of March and is roughly 1/3 of the way through so he could start playing at any time in the near future making him the first openly male gay athlete to actually play a major team sport[though I guess MLS isn't really considered one of the big 4 in the US, soccer is still the largest team sport in the world]. Usually in cases like where a player joins a team mid-season from not playing competitively his first couple of appearances will be off the bench, but anything is possible. It appears the Galaxy had to give up a significant player for his rights so they surely intend him to play a significant role for the team.
Personally, I think this is in a way more impressive than Jason Collins. When he came out he honestly believed that he couldn't continue playing openly gay despite being in the prime of his career. Likely the environment in England is a lot less tolerant of gays in sports which caused him to choose to retire. There are frequent stories of racism abounding in European soccer. I never hear stories of racism in US sports. The closest is Sergio Garcia's recent incident, but then he is European playing on both the European and PGA tours. So it wouldn't surprise me at all that European soccer community isn't completely accepting of gays.
But the outpouring of support in the wake of his announcement in February apparently convinced him he could continue playing, in the US at least. And that I find very heartening.