The highs and lows of 'Rocket' Ronnie O'Sullivan's career

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The highs and lows of 'Rocket' Ronnie O'Sullivan's career

With Ronnie O'Sullivan's position among the elite top 16 players in the world under threat, BBC Sport looks at the career of one of the best and most controversial players snooker has ever seen. (from January 2012, UK users only)