Maria Sharapova said she would "play in the parking lot" if required after winning her third match on Arthur Ashe Stadium at the US Open.
The Russian, 30, beat 18-year-old American Sofia Kenin 7-5 6-2 in the third round in New York.
Fifth seed Caroline Wozniacki had been critical of the decision to put Sharapova on the stadium court as she needed a wildcard after a doping ban.
"I don't make the schedule," said Sharapova, the 2006 champion.
"I'm a pretty big competitor. If you put me out in the parking lot of Queens in New York City, I'm happy to play there.