FILE PHOTO: Snooker - BetVictor Welsh Open Final - Motorpoint Arena, Cardiff, Wales - 21/2/16 Ronnie O'Sullivan in action during the final Mandatory Credit: Action Images /Rebecca Naden/File Photo
(Reuters) - Snooker great Ronnie O'Sullivan surged through to the semi-finals of the Masters on Thursday but left London's Alexandra Palace with a sick feeling after labelling the venue disgusting and filthy.
O'Sullivan, 48, has won the Masters seven times in his illustrious career but was not satisfied with the cleanliness of the arena which was built in 1865 has hosted the tournament since 2012.
