Novak Djokovic says he'll use his 22-match winning streak as a launchpad for an all-out assault on more grand slam tennis titles next year.
The Serb claimed the ATP World Tour Finals title for a third time yesterday with a one-sided 6-3 6-4 win over the world number one Rafael Nadal, and he believes he has taken his game to a new level since losing to the Spaniard in the U.S. Open final.
Djokovic's form in the last two and a half months is reminiscent of his incredible 43-match unbeaten streak in 2011 when he won three of the year's four majors.
But his first priority is to regain the Davis Cup for Serbia in this week's final against the Czech Republic.
