Openly gay tennis legend Martina Navratilova has spoke out on Margaret Court's opposition to gay marriage.

Court, the 62-time Grand Slam champion, in January reiterated her opposition to gay nuptials.

“Politically correct education has masterfully escorted homosexuality out from behind closed doors, into the community openly and now is aggressively demanding marriage rights that are not theirs to take,” Court told The West Australian of efforts to legalize marriage equality in Australia.

“There is no reason to put forward alternative, unhealthy, unnatural unions as some form of substitute,” added Court, a Pentecostal minister.

Navratilova was among the speakers at Out & Equal's Global LGBT Workplace Summit 2012, which took place in London. She discussed homophobia in sport.

“I have tried to have a dialogue with Margaret Court but you can't have a dialogue with a person who is completely closed to anything based on reality,” Navratilova is quoted as saying by

“I wasn't shocked,” she said of Court's remarks. “I just thought, 'Not again.' She is on the losing side of history because it's the right thing to do. I was disappointed that we couldn't have a discussion.”

She also called on companies to increase their support for gay rights.

“Get more political. Be more of an advocate on a bigger level. Stand up more to these really ignorant statements. Whether it's politicians or different churches. Because silence equals consent. So they [corporations] need to be a little more vocal in their support.”