In April, Alex Morgan and four of her fellow U.S. women’s national teammates made a major move off the field: They filed a complaint with the Equal Employment Opportunity Commission against the U.S. Soccer Federation, demanding the women’s national team (WNT) players receive equal pay to the men’s national team (MNT) players. According to the players who filed the complaint, last year they were paid just 40 percent of what players on the MNT earned. Remember: Nationally, women make 79 cents for every dollar earned by a man, according to the Institute for Women’s Policy Research . They also say the WNT—which has won three World Cup championships and four Olympic Championships— generated $20 million more in revenue than the men’s team last year. So, it’s pretty clear to see why they’re demanding equal pay for equal play.