Hi, how are you? Do you know where i can watch a Snooker competition or see one of the Greats?

Question

I have sum1 visiting between the 19th of July and the 3rd of August and he is an avid snooker player. Im trying to find tickets to a Snooker match of any kind during these dates or even just a place where we can see one of the greats (ie.. Steven Hendry, Ronnie O'Sullivan.. etc) during trainig. If any1 can help with this, it will really be appreciated. Thanks