Day 8: Final: Djokovic v Nadal

Sue Barker presents live coverage as the 2013 ATP World Tour Finals reaches its conclusion. Novak Djokovic won the title for a second occasion last year, beating six-time winner Roger Federer 7-6, 7-5. Now in its 44th year, the season-ending tournament sees the top eight players in the world battle it out for glory and boasts a roll of honour that reads like a who's who of men's tennis.

In this final match, Novak Djokovic defends his title against Rafael Nadal.