13:00Snooker: The Masters2015Semi-final: Robertson v O'SullivanBBC Two Duration: 2 hours, 40 minutes Sat 17th Jan 2015, 13:00 on BBC One West MidlandsHazel Irvine introduces live coverage from the first semi-final at the 2015 Masters as Neil Robertson plays Ronnie O'Sullivan. The match is the best of 11 frames.GenresSportSnookerBrandSnooker: The MastersSeriesSnooker: The Masters: 2015 Source: BBC Online