O'Sullivan suffers session whitewash against China's Zhao at World Snooker Championship

London: Ronnie O Sullivan lost all eight frames to China s Zhao Xintong in the second session of their World Snooker Championship semi final on Friday...

London: Ronnie O'Sullivan lost all eight frames to China's Zhao Xintong in the second session of their World Snooker Championship semi-final on Friday to trail 12-4 as a mid-match change of tip backfired spectacularly.

The seven-time champion had the tip on his cue changed overnight, having labelled it as "awful" ahead of the last-four clash with Zhao at the Crucible.

The Englishman had still emerged from the first session level at 4-4, but lost all eight frames on Friday morning as Zhao ruthlessly punished every missed pot and poor safety.

The 28-year-old left-hander now needs just five more frames to book his place in the final against either Judd Trump or Mark Williams after inflicting only the fourth session whitewash of his career on a shellshocked O'Sullivan.

Zhao made breaks of 57 (twice), 112 and 82 to establish an 8-4 lead, with O'Sullivan scoring just 50 points in those four frames and recording a highest break of 23.