You know Renee Richards is the First Transgender Tennis Player

Renee Richards (born August 19, 1934) is an American ophthalmologist and former tennis player who had some success on the professional circuit in the 1970s. In 1975 Richards underwent male-to-female sex reassignment surgery. She was then denied entry into the 1976 US Open by the United States Tennis Association, which began that year requiring genetic screening for female players. She disputed this policy, and the New York Supreme Court ruled in her favor in 1977 in a decision in favor of transsexual rights. As one of the first professional athletes to identify as such, she became a spokesperson for the transgender community.