Mark Selby in control against Fergal O'Brien at World Snooker Championship

Mark Selby was making short work of getting past snooker's marathon man in the first round of the Betfred World Championship.

The defending champion burst into an 8-0 lead against the Irishman, and the second whitewash in Crucible history was on the cards until O'Brien made 23 and 32 in the final frame of the session to avoid that humiliation.