of Serbia has a tough opening match at the US Open today in Flushing Meadows New York.
The World number 3 will take on his compatriot and the Serbian number 2 Viktor Troicki, the duo met earlier in the year in Dubai and Djokovic managed to win that match from a set down and he would go on to win the title.
They met once again 2 weeks ago at the ATP Masters 1000 event in Cincinnati Ohio and Djokovic won that match in straight sets.
In 2007 Djokovic managed to reach the US Open final but he was beaten by Roger Federer in straight sets 7-6 7-6 6-2. The Serb has also reached the US Open Semi Final for the last 2 years but lost both times to Federer.
Federer last year reached the US Open final but lost in 5 sets to Juan Martin Del Potro.