Billie Shepherd has had to withdraw from Dancing On Ice after a fall in training.
The reality star has been ruled out of continuing in the competition by the show's medical team.
A spokesperson for ITV said ahead of tonight's show: "During rehearsals for this week’s show, Billie Shepherd has had a fall.
“Taking the expert advice of the Dancing on Ice medical team, she sadly cannot perform this weekend and will therefore now withdraw from the competition.
“We wish Billie well as she now takes the time to recover.”
Billie had previously missed last weekend's episode following the sad death of her grandmother.
The Mummy Diaries star had been due to perform a contemporary routine to Falling by Harry Styles with pro partner Mark Hanretty on Sunday's show.
Taking to Instagram, Billie wrote: "I am so so sad that our @dancingonice journey has come to an end after an accident in rehearsals on Friday causing me a head injury, forcing us out of the competition
"@markhanretty A true friend for life, you have been the most incredible partner throughout all of this, I mean you taught me to skate for one thank you for being so kind, supportive, patient, understanding, and thank you for being such a happy, positive person when I needed it the most
"it’s been a tough couple of weeks personally for me and coming back to skating this week has really been a great distraction I am so so gutted we can’t perform tonight, we worked so so hard on this week’s routine
"However, although it has sadly been cut short , being part of @dancingonice has been the best experience, I have met some wonderful people and I actually feel quite proud of myself that I pushed myself so far out of my comfort zone and faced some of my biggest fears
"I’m going to miss being part of this incredible show so much I wish all of the rest of cast so much luck and I will be cheering you all on every Sunday, you are all amazing !!!
"Thank you to everyone for your kind messages and support throughout all of this It means so much to me and I am so grateful"
Billie will not be replaced on the show as the series has already used both of its two reserve skaters - TV presenter Matt Richardson and Olympic gymnast Amy Tinkler.
Those now left on Dancing On Ice's line up are TV personality Rebekah Vardy, soap star Joe-Warren Plant and radio DJ Sonny Jay.
Completing the cast are actress Faye Brookes, rapper Lady Leshurr, Olympic athlete Colin Jackson and Neighbours legend Jason Donovan.
Dancing On Ice continues Sunday night at 6PM on ITV.
Presenters Holly Willoughby and Phillip Schofield are joined by Ashley Banjo, John Barrowman and Torvill and Dean who return to the panel.
Another celebrity will head home in the latest skate off in Sunday's episode.
You can watch Dancing On Ice online on the ITV Hub.