Ronnie O’Sullivan lost four of the final five frames in the second session of his last-16 match against John Higgins Credit : Mike Egerton/PA Ronnie O’Sullivan punched the table in frustration after missing chances to move into a commanding lead ahead of the final day of his World Championship match against old rival John Higgins. Having led 9-4, O’Sullivan lost the final three frames of the second session to be pegged back to 9-7 going into Monday afternoon when the first man to 13 will take their place in the quarter-finals. O’Sullivan’s anger boiled over in the final frame of the session, which he had several chances to win, although his annoyance had clearly also built up during the previous frame when he had failed to convert a wonderful opening chance to move 10-5 ahead.…