(KRON) -- Four teams forfeited matches against the San Jose State University women's volleyball team since a lawsuit was filed on behalf of several NCAA athletes, including SJSU's team captain. According to the lawsuit filed on September 23, one of SJSU's volleyball players is transgender. Since learning that a transgender athlete is on the Spartans' undefeated team, four teams have chosen to forfeit rather than play against SJSU. Advocates with Equality California, an LGBTQ+ civil rights group, blasted the forfeiting universities' decisions as a right-wing political attacks that have nothing to do with sports. Equality California executive director Tony Hoang wrote, "Let’s be clear - this isn’t actually about sports; it is part of a coordinated nationwide attack on the LGBTQ+ community led by extremist right-wing politicians." Hoang continued, "School administrators’ decision to bow to pressure from extremists instead of allowing their student-athletes to compete harms all students involved. They are teaching fear-mongering and discrimination instead of fostering the camaraderie and competition college athletics should be about. Less than 2% of NCAA athletes identify as transgender or nonbinary. All trans athletes want to do is work hard and compete alongside their teammates -- just like everyone else. Equality California stands with San Jose State University and appreciates their strong support for their student athletes." Current NCAA Division 1 women's athletes named as plaintiffs in the lawsuit include SJSU volleyball team captain Brooke Slusser, Texas A&M University swimmer Ellis Fox, University of Kentucky tennis player Ellie Eades, and University of Arkansas soccer and track athlete Ainsley Erzen. The lawsuit accused the National Collegiate Athletic Association's Transgender Eligibility Policies of violating Title IX "by allowing men to compete on women’s teams in intercollegiate sports," attorneys wrote. Transgender athletes have athletic advantages over women, the suit claims. The NCAA's rules require universities and student-athletes to "uncritically accept and comply with the subordination of women’s rights to the interests of a relatively small number of men," the lawsuit states. Slusser is the Spartans' star setter. For the team's match against Colorado State University on Thursday, SJSU tweeted a photo featuring Slusser. Slusser said she and several other teammates believe the Spartans have an unfair advantage over opposing teams. So far this season, SJSU has nine wins and zero losses. During practices leading up to the 2024 season, Slusser saw her transgender teammate spiking the ball "far harder than any woman she had ever played against," the lawsuit states. The 6"1' transgender athlete has a jumping ability and power that surpasses the rest of the team, the suit claims. The athlete plays the position of outside hitter, and according to the lawsuit, can spike the ball at 80 miles per hour. (Photo by Jamie Schwaberow/ NCAA Photos via Getty Images) In the suit, Slusser says she didn't find out that her teammate was transgender until she overheard a conversation between two students. One of the students mentioned that the player was "a guy," the lawsuit states. SJSU officials told volleyball team members that they should not speak about the player's sex or gender identity with anyone outside the team, according to the lawsuit. Slusser questions whether it is safe to have the player on the team. Slusser claims that the player's "spikes significantly increased the risk of her, teammates and opponents being concussed. If the ball was not blocked at the net by a defender, it was difficult for the players to react to (the player's) spike." The lawsuit states, "Throughout the 2024 pre-season and during their regular in-season practices, Brooke and her teammates have been afraid of getting concussed from getting hit in the head by a volleyball struck by (the athlete)." Womens-athletes-lawsuitDownload SJSU coaches brushed off players' safety concerns, Slusser alleges. Read more on the lawsuit in KRON4’s previous reporting on the story.