Player Novak Djokovic Served a Ball Editorial Stock Image - Image of djokovic, tournament: 9306664
Djokovic claims his first title of 2009 - CNN.com
Novak Djokovic of Serbia reacts during his match against Ivan Ljubicic of Croatia at the Madrid Open tennis tournament May 15, 2009. REUTERS/Juan Medina (SPAIN SPORT TENNIS Stock Photo - Alamy
Novak Djokovic vs Roger Federer head to head at the US Open 2015 - Sports Illustrated
Novak Djokovic VS Rafael NADAL - DAVIS CUP 2009 | Tenis, Dav… | Flickr
Paris 2009: Novak Djokovic prevails against Gael Monfils in a thriller