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LONDON, ENGLAND - JANUARY 15: Ronnie O'Sullivan of Great Britain in action during his quarter-final match against Marco Fu of Hong Kong on Day Five of the 2015 Dafabet Masters at Alexandra Palace on January 15, 2015 in London, England. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - JANUARY 15:  Ronnie O'Sullivan of Great Britain in action during his quarter-final match against Marco Fu of Hong Kong on Day Five of the 2015 Dafabet Masters at Alexandra Palace on January 15, 2015 in London, England.  (Photo by Bryn Lennon/Getty Images)