Strictly star JJ Chalmers has been battling a secret injury after a piece of shrapnel embedded in his leg became infected shortly before the show started.
The 33-year-old, who was injured in a bomb blast while serving in Afghanistan, has been managing the pain but it flared up again this week while practising the Viennese Waltz.
Show insiders say it could be down to the “constant rubbing” associated with the type of dance, which he is performing this week with partner Amy Dowden.
But JJ told the Mirror he was determined to make the dance floor and will waltz through the pain barrier. He said: “Whilst there's a level of pain and sensitivity with it, it's not anything I'm not used to.
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