Students, children and people from community groups and sports clubs relaxed on the grass while some athletes were sprinting and others limbering up.

BBC: Crowd

While some gay athletes have expressed concerns about how earning potentials could be hurt by coming out, King said she thinks Collins' openness could have the opposite effect.

NPR: 'I'm Gay': NBA Player Jason Collins Breaks Barrier

Some athletes receive a share of potential advertising revenue, while others might get money upfront to cover travel to a shooting destination or compensation might come in the form of a camera upgrade.

WSJ: Web TV's New Lineup