Former Olympian Caitlyn Jenner has weighed into the transgender athlete debate, saying it's "just not fair" to have biological boys competing with women and girls in sports.
"The bottom line is we have to keep it fair," Ms Jenner told Sky News Australia host Piers Morgan.
"I don't want to ruin women's sports or discourage women getting into sports because they think oh my gosh I'm going to have to compete against a bunch of guys – it's just not fair."
