Ronnie O'Sullivan of England celebrates during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (L) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (L) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (R) of England celebrates claiming the title of the 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (L) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (L) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan of England celebrates during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan of England celebrates during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (L) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (L) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (2nd L) of England celebrates with his family during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (R) of England celebrates claiming the title of the 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan of England celebrates during the final of 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan seals his fifth world title by defeating Barry Hawkins of England with 18-12 in the final.(Xinhua/Wang Lili)

Ronnie O'Sullivan of England poses with his trophy during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan (R) of England celebrates with his son Ronnie Junior during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan of England celebrates during the awarding ceremony for 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan sealed his fifth world title by defeating Barry Hawkins of England with 18-12 in the final. (Xinhua/Wang Lili)

Ronnie O'Sullivan of England reacts during the final of 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan seals his fifth world title by defeating Barry Hawkins of England with 18-12 in the final.(Xinhua/Wang Lili)

Ronnie O'Sullivan of England reacts during the final of 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan seals his fifth world title by defeating Barry Hawkins of England with 18-12 in the final.(Xinhua/Wang Lili)

Ronnie O'Sullivan of England reacts during the final of 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan seals his fifth world title by defeating Barry Hawkins of England with 18-12 in the final.(Xinhua/Wang Lili)

Ronnie O'Sullivan of England reacts during the final of 2013 World Snooker Championship at the Crucible Theatre in Sheffield, Britain, May 6, 2013. Ronnie O'Sullivan seals his fifth world title by defeating Barry Hawkins of England with 18-12 in the final.(Xinhua/Wang Lili)