O'Sullivan withdraws from Masters for medical reasons
Eight-time champion Ronnie O'Sullivan withdraws from the Masters, which starts on Sunday, for the second year in a row on medical grounds.
9 Jan 23:20 · BBC Sport
Ronnie O'Sullivan pulls out of Masters for 'medical reasons'
Ronnie O'Sullivan has withdrawn from the Masters on medical grounds less than 48 hours before the prestigious tournament starts. 
9 Jan 23:51 · Mail Online
last updated on 10 Jan 10:56