Tennis legend Martina Navratilova says she's done her research and now believes more than ever transgender athletes physiologically born as men should NOT be allowed to compete against women.
"It's insane and it's cheating," Martina says in an op-ed posted in The Sunday Times.
"I am happy to address a transgender woman in whatever form she prefers, but I would not be happy to compete against her. It would not be fair."
Martina has become passionate about the issue after an online spat with transgender cyclist Rachel McKinnon -- who won the Masters Track championship in L.