Ex-NBA player Jason Collins and tennis great Martina Navratilova urged world sports bodies like the International Olympic Committee and FIFA to do more to support gay athletes at a special United Nations event celebrating International Human Rights Day.
The two openly gay athletes appeared along with human rights activists at the UN events, which focused attention on the upcoming Winter Olympics in Sochi, Russia.
Russia passed a law this summer banning homosexual "propaganda". The law has drawn international condemnation and sparked some calls for a boycott, though no nations have threatened to pull their athletes.
Navratilova, who lost lucrative endorsements when she came out back in 1981, said she doesn't support any boycotts. But she said the IOC is "putting its head in the sand" and criticised FIFA, the world soccer body, for awarding the 2022 World Cup to Qatar.
"Nobody's talking about Qatar and the World Cup. You can get a jail term there," she said of consensual gay sex in the small Persian Gulf nation.