Novak Djokovic said the Vienna Open will be one of the most competitive ATP 500 tournaments. Djokovic: "I'm going to try and win as many matches as possible, I know I need a couple of matches to end up as number one of the world this season. Hopefully I'll be able to do that. It's definitely one of the big goals. We'll see how it goes, it's a very strong field. You have six out of the top 10 players playing here at the 500 event. I think this must be if not the hardest, or the toughest men's draw of all time for a 500 category event and definitely one of the hardest ones that we have ever seen, that I was ever a part of. So the quality of matches from the first round will be very, very hard."