'Silky' Ronnie O'Sullivan hits superb century on way to beating Ding Junhui

Watch Ronnie O'Sullivan at the top of his game as he hits a superb break of 117 on his way to a 13-10 victory over Ding Junhui at the World Snooker Championships in Sheffield. 'Silky' Ronnie O'Sullivan hits superb century on way to beating Ding Junhui