Hazel Irvine presents live coverage of the afternoon session on day 15 at the Crucible Theatre in Sheffield, featuring the fourth and final session of the first semi-final. There was no play at this stage last year, as Zhao Xintong had already completed a 17-7 victory over Ronnie O'Sullivan. With commentary and analysis from Steve Davis, Ken Doherty, Steven Hallworth, Stephen Hendry, John Parrott, Joe Perry, Dennis Taylor and Lee Walker