Joe Swash has stepped in as a replacement on 'The Jump'.

Joe Swash

Joe Swash

The former 'EastEnders' star has jetted across to the Austrian slopes for an "assessment" as bosses hope he'll pick up the tricks of the trade swiftly and take Beth Tweddle's place in the competition this weekend after she ploughed into a bollard during training last week and broke her back.

And the 34-year-old actor already has a head start as his girlfriend Stacey Solomon has no doubt given him some tips after she made it to the seventh round when she competed last year.

However, Joe isn't the only person drafted in as a replacement as Miss Great Britain Zara Holland is also being put through a vigorous assessment.

Producers are reportedly hoping the beautiful model will take the place of 'Made in Chelsea's Mark-Francis Vandelli after he snapped his ankle while competing in the Snow Cross challenge last week.

Paralympian Heather Mills, 48, who lost her leg below the knee in 1993 after a collision with a motorcycle, has been put through her paces this week after she was brought in to replace Rebecca Adlington after the retired Olympic swimmer dislocated her shoulder earlier this month.

However, the ex-wife of Sir Paul McCartney is already at an advantage as she took part in the risky winter sports show last year but was eliminated in the first round.

The Wanted's Tom Parker, who spent three months training as a reserve for the show, was able to step up to the challenge last week when Tina Hobley quit after she dislocated her elbow.

Meanwhile, as the injuries mount up, the history of the Channel 4 show hangs in the balance.