New Dancing On Ice judge Katarina Witt has reportedly clashed with the show's head coach Karen Barber behind the scenes.
According to the Daily Mirror, the pair are on "the verge of a major bust up", with Karen furious with the German Olympic champion.
The newspaper claims that Karen, who works with the celebrity skaters, has been frustrated by Katarina's tough scoring and no-nonsense comments.
“Last weekend’s scores and comments were exceptionally hard on the contestants, and most of the scathing comments came from Katarina," a source told the newspaper. “Karen was furious during the show – everyone could see her glaring angrily at Katarina.
“But things escalated off camera. She thinks Katarina is nasty rather than supportive.
“She’s determined to defend the contestants who are trying their best, and Karen takes some of that criticism personally.”
Karen, a former judge on the show who was demoted to head judge last year, is also jealous of the new panellist.
“It’s getting very fiery, but the politics of the show are also a big issue. Deep down, Karen would rather be on the panel herself," the source added.
Dancing On Ice 2012 continues this Sunday on ITV1.