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The Barclays ATP World Tour Finals is is the climax of the men's professional tennis season, involving the top eight players in the men's tennis world rankings, including both singles players and doubles teams. The eight players are divided into two groups of four, and play three round-robin matches each against the other three players in their group. The two players with the best records in each group progress to the semifinals. Winners from semi's meet in the final to determine the champion.

ATP World Tour Finals 2009 will be held from 22-29 November 2009 in London, UK. Witness great tennis players like Roger Federer, Rafael Nadal, Andy Murray, Novak Djokovic and more in action.