File:Novak Đoković at the 2009 US Open 02.jpg - Wikimedia Commons
Serbia's Novak Djokovic celebrates after scoring a point against Spain's Fernando Verdasco during the U.S. Open on Wednesday, September 9, 2009, in New York City. (Photo by Ed Betz/Newsday/MCT/Sipa USA Stock Photo -
Djokovic growing in confidence going into U.S. Open | Reuters.com
Relive Novak Djokovic & Rafael Nadal's Epic 2009 Madrid Semi-final - YouTube
Djokovic holds nerve to secure the second round! – Novak Djokovic
Djokovic returns with win - Eurosport
Djokovic, Federer ease into U.S. Open quarters - CNN.com
File:US Open 2009 4th round 323.jpg - Wikipedia
Novak Djokovic Wins Paris Masters 2009 | I AM SURVIVORDEAN
Rome 2009 – Novak Djokovic
File:2009.05.26 Roland Garros Novak Djokovic.JPG - Wikimedia Commons
Novak Djokovic cruises into US Open quarter-finals | US Open tennis | The Guardian
Serbia's Novak Djokovic celebrates a point during the 2009 Wimbledon Championships at the All England Lawn Tennis and Croquet Club, Wimbledon, London Stock Photo - Alamy
Federer Beats Djokovic to Reach Final - The New York Times