LONDON — With three of the four grand slam titles and a record six Masters Series crowns scooped up in a year of domination, Novak Djokovic could be forgiven for using the ATP Tour Finals in London as a well-earned lap of honor.
Not a bit of it.
The 28-year-old world number one's appetite for stomping all over his supposed rivals is insatiable.
Serbian Djokovic will start as overwhelming favorite to claim a fourth consecutive title at the year-ender, having won 14 matches in a row at the Thames-side venue where last year ended in anti-climactic fashion as Roger Federer withdrew from their showdown with a back injury.