Once again in a Grand Slam final, world’s two leading tennis stars will face each other. They met at Wimbledon a couple of months ago, when Djokovic walked off as the eventual champion. This US open, both Djokovic and Federer have played marvelously and delighted the organizers with their seeds ranking. After the no.1 and no.2 women seeds lost their matches unexpectedly earlier on Friday, the crowd at the Flushing Meadows and viewers globally will have an opportunity of watching the Djokovic-Federer contest on Sunday and they can’t wait. In the first semifinal on Friday evening