Snooker: World Championship2013Day 14, Part 2BBC Sport Duration: 1 hourFirst broadcast: Fri 3rd May 2013, 13:00 on BBC Two HDLatest broadcast: Fri 3rd May 2013, 13:00 on BBC Two EnglandHazel Irvine introduces semi final action featuring Ronnie O'Sullivan and Judd Trump, with eight frames to be played.ContributorsPresenter:Hazel IrvineParticipant:Steve DavisParticipant:Ken DohertyParticipant:John ParrottParticipant:Stephen HendryParticipant:Dennis TaylorParticipant:Willie ThorneParticipant:John VirgoExecutive Producer:Alison WitkoverExecutive Producer:Graham FryGenresSportSnookerBrandSnooker: World ChampionshipSeriesSnooker: World Championship: 2013 Source: BBC Online