No dive, Larry ... Laura Csortan quits Celebrity Splash minutes into the show.
Laura Csortan says enthusiasm got the better of her when training for Celebrity Splash and it's why she sustained an injury that forced her to quit the show.
The diving competition between 14 personalities premiered on the Seven Network on Monday night, however Csortan withdrew before the first episode because of neck and back problems.
Going belly up (or is that down?) ... Derek Boyer replaced Laura Csortan on Celebrity Splash, but not for long.
The former Miss Australia was replaced by former world champion power lifter Derek Boyer, who appeared as Thunder on the TV series Gladiators.
Csortan said she suffered the injury "on land" and although she attempted to return to training she had to withdraw on medical advice.
Laura's injury occurred when she landed badly on training mats, Seven confirmed.
Laura Csortan did not last a single episode of Seven's new show.
"I'm very competitive and straight off the bat I was doing somersaults and that's how this eventuated," Csortan says. "It was just how I landed on the crash mat during dry training and my back didn't like it."
She admits that if she started out a "little more low key" it might have been different.
Now the TV personality has to work on building up muscles in her back and neck to aid her recovery which she says will take about two months.
"I have torn a disc in my neck and and the other one has prolapsed," she says. "It's been a painful journey."
Other personalities to sustain injuries during training were comedian Josh Thomas and Home And Away actress Demi Harman.
Celebrity Splash requires the personalities to perform dives from the 3m springboard or platform dives in front of a live audience.
The identities are judged by Olympic diving champions Matthew Mitcham and Greg Louganis, as well as Winter Olympics aerial ski champion Alisa Camplin.
Although he was roped in to replace Csortan at the last minute, Boyer's Celebrity Splash experience only lasted one night after he performed a 10-metre-high bellyflop.
He and Renae Ayris were eliminated in the opening episode while Brynne Edelsten, Pauly Fenech, Andrew Symonds and Tamsyn Lewis made it through to the semi-finals.
Among those taking to the pool on Tuesday are Olympic swimming champ Leisel Jones, Harman, and veteran TV personality Denise Drysdale.
AAP, with Scott Ellis