1 women's tennis player in the world and a four-time major champion, is endorsing the Women’s Tennis Association’s (WTA) newly implemented genetic testing requirements for its athletes. "Biologically, men are way stronger than women, so I feel like it would not really be fair for women to compete against biological men," she told reporters. “I don’t say that to denigrate women’s tennis… I love women’s tennis," he added. "I want to protect young girls in a locker room, or young girls in sport who shouldn't have to go against biological men," she said. The world's top women's player and one of the most popular women's basketball players are on the same page here — men do not belong in women's sports.