By Kerry Mcdermott PUBLISHED: 11:21 EST, 28 May 2013 | UPDATED: 01:39 EST, 29 May 2013 A dancer with a reputation as the 'bad boy' of ballet has blamed an unspecified 'health issue' for walking out on a production of Midnight Express days before opening night. Sergei Polunin, 23 - who hit the headlines when he unexpectedly quit the Royal Ballet last year - apologised for his shock exit from the show with Peter Schaufuss' company in April ahead of its London premiere. The Ukrainian star joked that he was 'pretty certain' he would make it to the stage for his new show, Coppelia at the Coliseum in the West End in July.
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Sergei Polunin walked out on production in April ahead of London premiere
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The 23-year-old dancer apologised but would not elaborate on 'health issue'
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Ukrainian hit headlines when he unexpectedly quit Royal Ballet last year
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