![Brian Dabul of Argentina returns a forehand to Roger Federer of Switzerland during their opening night match at the U.S. Open tennis tournament in New York August 30, 2010. REUTERS/Lucas Jackson (UNITED Brian Dabul of Argentina returns a forehand to Roger Federer of Switzerland during their opening night match at the U.S. Open tennis tournament in New York August 30, 2010. REUTERS/Lucas Jackson (UNITED](https://l450v.alamy.com/450v/2e614dc/roger-federer-of-switzerland-returns-a-forehand-to-brian-dabul-of-argentina-during-their-opening-night-match-at-the-us-open-tennis-tournament-new-york-august-30-2010-reuterslucas-jackson-united-states-tags-sport-tennis-2e614dc.jpg)
Brian Dabul of Argentina returns a forehand to Roger Federer of Switzerland during their opening night match at the U.S. Open tennis tournament in New York August 30, 2010. REUTERS/Lucas Jackson (UNITED
![Roger Federer of Switzerland returns a winning shot between his legs while playing Brian Dabul of Argentina during their opening night match at the U.S. Open tennis tournament in New York, August Roger Federer of Switzerland returns a winning shot between his legs while playing Brian Dabul of Argentina during their opening night match at the U.S. Open tennis tournament in New York, August](https://c8.alamy.com/comp/2E5NF8T/roger-federer-of-switzerland-returns-a-winning-shot-between-his-legs-while-playing-brian-dabul-of-argentina-during-their-opening-night-match-at-the-us-open-tennis-tournament-in-new-york-august-30-2010-reuterslucas-jackson-united-states-tags-sport-tennis-2E5NF8T.jpg)
Roger Federer of Switzerland returns a winning shot between his legs while playing Brian Dabul of Argentina during their opening night match at the U.S. Open tennis tournament in New York, August
![Tennis training: Coach And former top 100 ATP player Brian Dabul (Federer, Nadal, Djokovic) - YouTube Tennis training: Coach And former top 100 ATP player Brian Dabul (Federer, Nadal, Djokovic) - YouTube](https://i.ytimg.com/vi/hZzkX16wNfk/hqdefault.jpg)
Tennis training: Coach And former top 100 ATP player Brian Dabul (Federer, Nadal, Djokovic) - YouTube
![Roger Federer of Switzerland returns a forehand shot to Brian Dabul of Argentina during their opening night match at the U.S. Open tennis tournament New York, August 30, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS Stock ... Roger Federer of Switzerland returns a forehand shot to Brian Dabul of Argentina during their opening night match at the U.S. Open tennis tournament New York, August 30, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT TENNIS Stock ...](https://c8.alamy.com/zooms/6/b0e43239a0c94aa8bbd03370ce56ec31/2e63tgx.jpg)