Mark my words: Novak Djokovic is going to be the number one tennis player in the world by the end of the year. He won the Rome Masters tournament on Sunday, his third victory of the year. Roger Federer and Rafael Nadal, the two players ranked above him, have suffered some uncharacteristic losses and their nearly four-year grip on the top two spots appears to be slipping.

After his win, he cknowledged he is a contender to become No. 1: "I hope so. But I don't want to think about No. 1 yet. I know a lot of people will start talking now about me being one of the best players. Let's see. I'm taking it as it comes."