The Australian Open's Margaret Court Arena should be renamed because of the 11-time champion's "derogatory" views on sexuality, says Billie Jean King.
Court, who holds the record for winning most Grand Slam singles titles at 24, is an opponent of gay marriage.
The second show court at Melbourne Park was renamed in the 75-year-old's honour in 2003.
"I'm a gay woman. If I were playing today, I would not play on it," King, 74, said on Friday.
The American, who won 12 major singles titles, said she had originally backed Court to be honoured by the naming of the stadium, but the Australian's outspoken views in recent years had changed her mind.