The U.S. Soccer Federation has reached a tentative agreement for mediation with the women’s national team to resolve complaints in a lawsuit over equal pay with the men’s team. 

U.S. Soccer’s lawyers in a letter on Monday agreed to participate in mediation after the ongoing women’s World Cup in France concludes on July 7.

All 28 members of the defending World Cup champion U.S. squad, who have reached the knockout stage of this year’s tournament in France, were named as plaintiffs in federal court when the lawsuit was filed in March.

The players, including stars Megan Rapinoe, Carli Lloyd and Alex Morgan, say they have been consistently paid less money than their male counterparts even though their performance has been superior to the men’s team.

The lawsuit also outlines years of institutionalized gender discrimination, claiming travel conditions, medical personnel, promotion of games and training are less favorable for female players than for their male counterparts.