Australia women have gone on strike over pay and conditions, putting in doubt two games against United States.
They have pulled out of a training camp for next week’s friendlies in the US.
Football Federation Australia (FFA) said it was “disappointed” by increased player demands, which it says include wanting business class flights.
“When you’ve got 60,000 people holding tickets [for the matches against the world champions], it’s obviously a concern,” FFA chief David Gallop said.
Goalkeeper Lydia Williams said the decision to withdraw from the camp had been “extremely difficult” but necessary to make FFA take their claims seriously