The reality TV star, 30, showed her fan base exactly how hard she's been training for the ITV show when she posted a picture of her bruised legs on her Twitter page.
Alongside a picture of her sore and battered legs, Danielle wrote: "My bruised thighs from splash training!!! Painful to say the least #trainhardorgohome."
Danielle will compete on next week's episode of the diving show (18 January), opposite comedian Patrick Monahan, MP Penny Mordaunt, TOWIE star Dan Osborne and 80s pop singer Paul Young.
The former glamour model and Celebrity Big Brother star has been training hard for the show, which is hosted by Olympic diver Tom Daley. She is being trained by a team of professional coaches in a bid to perform dives from the high board.
Amazingly, Danielle only gave birth last August - to her third child George. She and footballer husband Jamie O'Hara are also parents to sons Archie and Harry.
Earlier today (12 January), Danielle put her nerves about taking part in Splash! to one side when she took the time to post a cute snap of her son Archie dressed as a "little Batman".
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