Martina Navratilova has no idea what to expect on I'm A Celebrity... Get Me Out Of Here! - because she's never seen the show.
The tennis star admitted she has never watched an episode of the jungle series, and isn't sure whether that's a good or a bad thing.
"I am flying very blind here - I have no idea what to expect other than having to rough it in the bush, in Australia with nine strangers," she said.
Martina said she's "going in and trusting on my ability to adjust".
She added: "As Billie Jean King says, champions adjust, so we'll see if I can adjust."