Seema Jaswal presents live coverage of the afternoon session on day 13 at the Crucible Theatre in Sheffield, featuring the opening eight frames of the first semi-final. Ronnie O'Sullivan played in a record-extending 14th semi-final last year, and he was tied 4-4 with Zhao Xintong at the end of the opening session. With commentary and analysis from Steve Davis, Ken Doherty, Steven Hallworth, Stephen Hendry, John Parrott, Joe Perry, Dennis Taylor and Lee Walker