She disagreed with the idea that biological women should be forced to compete with biological men in sports, and especially tennis. To Athlete Ally, this constitutes heresy against transgender identity.
"Martina Navratilova's recent comments on trans athletes are transphobic, based on a false understanding of science and data, and perpetuate dangerous myths that lead to the ongoing targeting of trans people through discriminatory laws, hateful stereotypes and disproportionate violence," Athlete Ally said in a statement announcing they were severing ties with the openly gay tennis legend.
"As an organization dedicated to addressing root causes of homophobia and transphobia in and through sport, we will only affiliate with those committed to the same goal, and not those who further misinformation or discrimination in any way. Given this, Navratilova has been removed from our Advisory Board and as an Athlete Ally Ambassador, effective immediately," the organization announced on Tuesday.