The current tennis season will come to a close with the ATP World Tour Finals at the O2 Arena in London next week.
The top-ranked eight players available - Roger Federer, Novak Djokovic, Andy Murray, David Ferrer, Tomas Berdych, Juan Martin del Potro, Jo-Wilfried Tsonga and Janko Tipsarevic - will compete for the honour of being named Tour champion.
Meanwhile, world number four Rafael Nadal has been forced to withdraw with a knee injury.
Hit 'play' below to see the tour's MD, Chris Kermode, speak of the success that the tournament has enjoyed since moving to London, and how he hopes to capitalise on the post-Olympic clamour for elite sport.
