Allen and Wu toil in 100-minute frame ‘embarrassment’, Higgins leads Murphy | World Snooker Championship

Wu Yize and Mark Allen’s semi-final is poised at seven frames all after their afternoon session ended with a bizarre frame – the longest in the World Snooker Championship’s Crucible era – clocking in at just over 100 minutes.

Allen began the afternoon trailing 6-2 overnight to an opponent…