The U.S. Women's National Soccer team is suing the U.S. Soccer Federation -- claiming they're sick of being paid less than the men's team ... despite being WAY better than their male counterparts.
Alex Morgan, Megan Rapinoe, Carli Lloyd, Julie Ertz and others all joined in on the suit ... which blasts the USSF for the pay disparity.
"Despite the fact that these female and male players are all called upon to perform the same job responsibilities on their teams ... the female players have been consistently paid less money than their male counterparts," the women say in their suit.