Mark Allen has booked a date in the Cazoo World Championship semi-final after grinding down Jak Jones at the Crucible Theatre.
World No.3 Allen came into the match as favourite but found his Welsh opponent in inspired form and it was only in the third session on Wednesday morning that his challenge eventually began to fade.
Antrim man Allen has only ever reached the last four once before - in 2009 - and came into the tournament on the back of three ranking event wins already in 2023.
