Strictly Come Dancing 2012: Johnny Ball breaks partner's leg In rehearsals for the BBC series yesterday, professional dancer Aliona Vilani, who won last year's competition with Harry Judd, was taken to hospital with a hairline fracture to her ankle. The accident happened when Ball, 74, made a wrong turn during their routine and will mean that Vilani will miss the beginning of the live shows next week. The damage is not career threatening for the dancer, but she has been banned from dancing until she can see a consultant next week. It is expected that she will have to rest her ankle for up to a month. Ball is the father of television and radio presenter Zoe Ball. He regularly appeared on the television in the Seventies and Eighties in programmes such as Think of a Number, Think Again, Playschool and Johnny Ball Reveals All. The Strictly Come Dancing 2012 live shows start on Friday 5 October on BBC One. This year's line up includes Olympians Victoria Pendleton and Louis Smith, Jerry Hall, Denise Van Outen, Michael Vaughn and Fern Britton.