A day before President Donald Trump signed an executive order banning transgender athletes from women’s sports, three University of Pennsylvania graduates sued their alma mater over the inclusion of a transgender student in a women’s swimming competition.

Former student-athletes from the University of Pennsylvania sued the school to get transgender swimmer Lia Thomas’s records expunged. According to court documents obtained by Fox News, UPenn alumni Grace Estabrook,

Three former athletes at the University of Pennsylvania women’s swimming program sued the school, the Ivy League Council of Presidents and athletics organizations Tuesday, claiming they violated federal law to allow transgender athlete Lia Thomas to compete against them.