Ronnie O'Sullivan's second round Welsh Open clash threatened to descend into a nightmare as he was twice forced off the table with cue problems.
Reigning world champion O'Sullivan had secured a 4-0 first round victory over Oliver Lines in Llandudno and was making an ominous start in his next game against Ross Muir.
O'Sullivan fired a typically classy century break, remarkably his 1195th in tournament play, during the first frame against Scotland's Muir at Venue Cymru.