A former Aussie Rules player has come out as the first openly gay or bisexual man in the Australian Football League's (AFL) 129-year history.

Mitch Brown, who played 94 matches for the West Coast Eagles from between 2007 and 2016, told The Daily Aus that the weight of hiding his sexuality played a "huge" part in his decision to retire.

He added that he hopes his decision to speak out will create the "safety, comfort and space" for others to come forward.

The news marks a pivotal moment for the AFL, which before Brown's announcement, was the only major professional men's sport globally to never have had an openly gay or bisexual player, even after retirement.

Brown first shared the news in a direct message to The Daily Aus's social media account after watching coverage of recent incidents of homophobia in the AFL.