This afternoon sees the latest chapter written in one of snooker’s great rivalries.
Ronnie O’Sullivan and Mark Selby lock horns once again in the final of the UK Championship, with plenty of buzz and excitement ahead of the contest at the Barbican Centre in York.
The pair has met on numerous occasions down through the years, predominantly amid high-pressure situations at the business end of big events.
There have been so many memorable moments that have enthralled millions of fans around the world.
Can you remember them?
This quiz follows a similar theme to the Snooker Trivia series previously run on this website – you have two minutes to answer 12 questions, so you’ll have to be quick thinking and perhaps rely on a couple of tries to get all the way to the end.
The question is, how well do you know the O’Sullivan-Selby rivalry?
Note: Quiz has been updated from original posting in January, 2016.