Hazel Irvine relives Ronnie O'Sullivan's remarkable victory at the 2013 world championship. As defending champion, the Rocket had taken a break from the game that season and hadn't played a competitive match since September the previous year. But he reached the final against Barry Hawkins without losing a single session. It was a high scoring and hugely entertaining final containing a record eight century breaks. O'Sullivan joined Stephen Hendry and Steve Davis as the only players to successfully defend the world title at the Crucible.