Britain's Jamie Murray has rejected claims of men being treated more leniently than women by umpires.
Serena Williams was docked a game by Portuguese official Carlos Ramos for verbal abuse during her US Open final defeat against Naomi Osaka last week.
The American claimed it was "sexist" and her view was endorsed by former champion Billie-Jean King, who said there was a "double standard".
But Murray said of the sexism claims: "I think that's a bit far-fetched."
Williams was seeking to equal Margaret Court's record of 24 Grand Slam singles titles and was facing 20-year-old Osaka at Flushing Meadows in her first major final.