Novak Djokovic got the big break when he needed it late in the third set to hold off Andy Murray 4-6, 6-3, 7-5 Wednesday at the ATP finals.
Djokovic, however, still hasn't advanced to the semifinals at the season-ending tournament for the top eight players in the world. But he can make it through if Jo-Wilfried Tsonga defeats Tomas Berdych in the other Group B match later Wednesday.
Murray looked unbeatable at the start, breaking Djokovic in the first game and losing only three points on his serve in the first set.
But Djokovic was able to convert break chances in each of the next two sets, and then for a third time at 5-5 in the final set to serve out the match.