MILAN: Juventus defender Stephan Lichsteiner could be facing a six-month spell on the sidelines for the Italian champions, according to a leading heart specialist. Juventus on Friday said Swiss international Lichsteiner would be absent “for 30 days” after undergoing a procedure to rectify cardiac arrhythmia, which was discovered after he suffered breathing problems two weeks ago. But a leading heart specialist, Bruno Caru, said in an interview with Il Corriere dello Sport that Lichsteiner could be forced to sit out for several months. Lichsteiner is not the first player to be sidelined by the heart condition. In Serie A most recently, Jonathan Biabiany’s move from Parma to AC Milan stalled in September 2014 after the condition showed up in tests. Biabiany spent several months before returning to action.