Novak Djokovic had to work hard for victory in his first match of the ATP Finals in Turin. After a three-hour match, the Serbian defending champion defeated the Danish tennis player Holger Rune 7-6 (4), 6-7 (1), 6-3. With this victory, Djokovic will end the year as number 1 in the world.
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Novak Djokovic wins after a three-hour match against Holger Rune at ATP Finals in Turin
