Roger Federer of Switzerland in action during the final match against... Nachrichtenfoto - Getty Images
![General view of the Hamburg Rothenbaum tennis stadium during a match between Germany's Nicolas Kiefer and Stanislas Wawrinka of Switzerland at the Hamburg Masters Tennis tournament in Hamburg May 14, 2008. REUTERS/Christian General view of the Hamburg Rothenbaum tennis stadium during a match between Germany's Nicolas Kiefer and Stanislas Wawrinka of Switzerland at the Hamburg Masters Tennis tournament in Hamburg May 14, 2008. REUTERS/Christian](https://c8.alamy.com/comp/2E78A99/general-view-of-the-hamburg-rothenbaum-tennis-stadium-during-a-match-between-germanys-nicolas-kiefer-and-stanislas-wawrinka-of-switzerland-at-the-hamburg-masters-tennis-tournament-in-hamburg-may-14-2008-reuterschristian-charisius-germany-2E78A99.jpg)
General view of the Hamburg Rothenbaum tennis stadium during a match between Germany's Nicolas Kiefer and Stanislas Wawrinka of Switzerland at the Hamburg Masters Tennis tournament in Hamburg May 14, 2008. REUTERS/Christian
![Swiss player Roger Federer celebrates after winning the final of the Hamburg Masters Tennis tournament [against Swiss player Roger Federer celebrates after winning the final of the Hamburg Masters Tennis tournament [against](https://c8.alamy.com/comp/2D4HMHM/swiss-player-roger-federer-celebrates-after-winning-the-final-of-the-hamburg-masters-tennis-tournament-against-guillermo-coria-of-argentina-at-hamburgs-rothenbaum-stadium-may-16-2004-federer-won-the-final-4-6-6-4-6-2-6-3-2D4HMHM.jpg)