Hazel Irvine presents coverage of the afternoon session on day five at the Crucible Theatre in Sheffield, featuring the conclusion of Ronnie O'Sullivan's first-round match against a qualifier and the start of Si Jiahui's opener. O'Sullivan claimed a comfortable 10-4 victory over Ali Carter at this stage last year. With commentary and analysis from Steve Davis, Ken Doherty, Steven Hallworth, Stephen Hendry, John Parrott, Joe Perry, Dennis Taylor and Lee Walker