Ronnie O'Sullivan leads John Higgins 6-2 after the opening session of their World Championship last-16 tie but Mark Williams, the other member of snooker's fabled 'Class of 92', was knocked out of the...

Ronnie O'Sullivan led 8-3 and 9-4 but lost 13-12 in an epic last-16 tie against John Higgins

Seven-time champion O'Sullivan was seeking an eighth title to set a new outright record in the modern era, and twice held five-frame leads in Sunday's second session.