The defending champion Ronnie O'Sullivan is through to the semi-finals of the world snooker championships but says he's only returned after a self-imposed exile as he needs to pay his children's school fees.
O'Sullivan, who is on course for a fifth world title, says this will be his 'final farewell' at the championships, although he is contracted by his sponsor to play 10 tournaments next season.
Dubbed 'The Rocket' for his fast play, O'Sullivan says his heart is no longer in competitive snooker.
