Four-time world snooker champion Mark Selby admits he could RETIRE after crashing out at the first-round stage at the Crucible... as he brands his 10-6 defeat by a debutant as 'PATHETIC'

Selby, 40, is one of the most decorated players of his generation, sitting at world No 1 on multiple occasions in his career, while he is eighth on the all-time list of ranking tournament winners.