Factbox - Djokovic's incredible year in numbers

(Reuters) - Novak Djokovic completed the best year of his career and one of the best by any player in the professional era when the Serb beat Roger Federer to win the ATP World Tour Finals on Sunday. Here are the important numbers from the past 12 months: - - Titles: 11 Grand slam titles: 3. Australian Open (beat Andy Murray), Wimbledon (beat Federer), U.S. Open (beat Federer) Masters Series titles: 6. Indian Wells, Miami, Monte Carlo, Rome, Shanghai, Paris. Became the first player to win the In