Germany's Tommy Haas returns a shot against Janko Tipsarevic of Serbia at the Australian Open tennis tournament in Melbourne January 21, 2010. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)
Germany's Tommy Haas returns a shot against Janko Tipsarevic of Serbia at the Australian Open tennis tournament in Melbourne January 21, 2010. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS) © REUTERS | REUTERS
Janko Tipsarevic of Serbia reacts during his match against Germany's Tommy Haas at the Australian Open tennis tournament in Melbourne January 21, 2010. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)
Janko Tipsarevic of Serbia reacts during his match against Germany's Tommy Haas at the Australian Open tennis tournament in Melbourne January 21, 2010. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS) © REUTERS | REUTERS
Germany's Philipp Kohlschreiber reacts to a point won against Wayne Odesnik of the U.S., during the men's singles match at the Australian Open tennis championship in Melbourne, Australia, Wednesday Jan. 20, 2010. (AP Photo/John Donegan)
Germany's Philipp Kohlschreiber reacts to a point won against Wayne Odesnik of the U.S., during the men's singles match at the Australian Open tennis championship in Melbourne, Australia, Wednesday Jan. 20, 2010. (AP Photo/John Donegan) © AP | AP
Germany's Sabine Lisicki returns to Italy's Alberta Brianti during their Women's singles match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 21, 2010. (AP Photo/John Donegan)
Germany's Sabine Lisicki returns to Italy's Alberta Brianti during their Women's singles match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 21, 2010. (AP Photo/John Donegan) © AP | AP
German tennis player Rainer Schuettler gestures during his men's singles match against Spanish opponent Feliciano Lopez on the third day of play at the Australian Open tennis tournament in Melbourne on January 20, 2010. Lopez won 6-3. 2-6. 6-3. 6-2. AFP PHOTO/William WEST
German tennis player Rainer Schuettler gestures during his men's singles match against Spanish opponent Feliciano Lopez on the third day of play at the Australian Open tennis tournament in Melbourne on January 20, 2010. Lopez won 6-3. 2-6. 6-3. 6-2. AFP PHOTO/William WEST © AFP | AFP
Simon Greul of Germany (R) shakes hands at the net with Tommy Haas of Germany at the end of their men's singles first round match on day two of the Australian Open tennis tournament in Melbourne on January 19, 2010. Haas won the match 6-7, 6-4, 6-2, 6-1. The first Grand Slam of the 2010 tennis season is taking place in the Australian city January 18-31. AFP PHOTO / WILLIAM WEST
Simon Greul of Germany (R) shakes hands at the net with Tommy Haas of Germany at the end of their men's singles first round match on day two of the Australian Open tennis tournament in Melbourne on January 19, 2010. Haas won the match 6-7, 6-4, 6-2, 6-1. The first Grand Slam of the 2010 tennis season is taking place in the Australian city January 18-31. AFP PHOTO / WILLIAM WEST © AFP | AFP
MELBOURNE, AUSTRALIA - JANUARY 19: Tommy Haas of Germany celebrates after winning his first round match against Simon Greul of Germany during day two of the 2010 Australian Open at Melbourne Park on January 19, 2010 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)
MELBOURNE, AUSTRALIA - JANUARY 19: Tommy Haas of Germany celebrates after winning his first round match against Simon Greul of Germany during day two of the 2010 Australian Open at Melbourne Park on January 19, 2010 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images) © Getty Images/Getty | Getty Images
Simon Greul of Germany hits a return during his loss to Tommy Haas of Germany in their men's singles first round match on day two of the Australian Open tennis tournament in Melbourne on January 19, 2010. The first Grand Slam of the 2010 tennis season is taking place in the Australian city January 18-31. AFP PHOTO / WILLIAM WEST
Simon Greul of Germany hits a return during his loss to Tommy Haas of Germany in their men's singles first round match on day two of the Australian Open tennis tournament in Melbourne on January 19, 2010. The first Grand Slam of the 2010 tennis season is taking place in the Australian city January 18-31. AFP PHOTO / WILLIAM WEST © AFP | AFP
Rainer Schuettler of Germany returns against S. Querrey of the United States in their men's first round match at the Australian Open Tennis Tournament in Melbourne, Australia, 19 January 2010. EPA/FRANCK ROBICHON +++(c) dpa - Bildfunk+++
Rainer Schuettler of Germany returns against S. Querrey of the United States in their men's first round match at the Australian Open Tennis Tournament in Melbourne, Australia, 19 January 2010. EPA/FRANCK ROBICHON +++(c) dpa - Bildfunk+++ © dpa/DPA | dpa
Germany's Tommy Haas prepares to serve against France's Jo-Wilfried Tsonga at the Kooyong Classic tennis tournament in Melbourne January 15, 2010. REUTERS/Mick Tsikas (AUSTRALIA - Tags: SPORT TENNIS)
Germany's Tommy Haas prepares to serve against France's Jo-Wilfried Tsonga at the Kooyong Classic tennis tournament in Melbourne January 15, 2010. REUTERS/Mick Tsikas (AUSTRALIA - Tags: SPORT TENNIS) © REUTERS | REUTERS
Philipp Kohlschreiber, Deutschland Tennis Masters Hamburg Rothenbaum 2008
Philipp Kohlschreiber, Deutschland Tennis Masters Hamburg Rothenbaum 2008 © WITTERS/Witters Sport-Presse-Fotos | WITTERS
HAMBURG, GERMANY - JULY 22: Mischa Zverev of Germany returns the ball during the match against Simon Greul of Germany during day three of the International German Open at Rothenbaum Tennis Centre on July 22, 2009 in Hamburg, Germany. (Photo by Martin Rose/Bongarts/Getty Images)
HAMBURG, GERMANY - JULY 22: Mischa Zverev of Germany returns the ball during the match against Simon Greul of Germany during day three of the International German Open at Rothenbaum Tennis Centre on July 22, 2009 in Hamburg, Germany. (Photo by Martin Rose/Bongarts/Getty Images) © Bongarts/Getty Images/Getty | Bongarts/Getty Images
Benjamin Becker of Germany plays a backhand return against Richard Gasquet of France at the Sydney International tennis tournament on January 13, 2010. Gasquet won in straight sets 6-2, 7-6. AFP PHOTO / Greg WOOD
Benjamin Becker of Germany plays a backhand return against Richard Gasquet of France at the Sydney International tennis tournament on January 13, 2010. Gasquet won in straight sets 6-2, 7-6. AFP PHOTO / Greg WOOD © AFP | AFP
HAMBURG, GERMANY - JULY 21: Florian Mayer of Germany returns the ball during the match against Rainer Schuettler of Germany during day two of the International German Open at Rothenbaum Tennis Centre on July 21, 2009 in Hamburg, Germany. (Photo by Martin Rose/Bongarts/Getty Images)
HAMBURG, GERMANY - JULY 21: Florian Mayer of Germany returns the ball during the match against Rainer Schuettler of Germany during day two of the International German Open at Rothenbaum Tennis Centre on July 21, 2009 in Hamburg, Germany. (Photo by Martin Rose/Bongarts/Getty Images) © Getty | Bongarts/Getty Images
German tennis player Rainer Schuettler plays a return shot against Indian opponent Somdev Devvarman, during their first round match at the ATP Chennai Open 2010, in Chennai on January 5, 2010. Devvarman won the match 7-5, 6-2. AFP PHOTO/Dibyangshu SARKAR
German tennis player Rainer Schuettler plays a return shot against Indian opponent Somdev Devvarman, during their first round match at the ATP Chennai Open 2010, in Chennai on January 5, 2010. Devvarman won the match 7-5, 6-2. AFP PHOTO/Dibyangshu SARKAR © AFP | AFP
German Tennis player Michael Berrer return a backhand to Swiss opponent Stanislas Wawrinka during the Quaterfinal match of the ATP Chennai Open 2010 in Chennai on January 8, 2010. Wawrinka won the first set 7-6 as the match continues. AFP PHOTO/ DIBYANGSHU SHARKAR
German Tennis player Michael Berrer return a backhand to Swiss opponent Stanislas Wawrinka during the Quaterfinal match of the ATP Chennai Open 2010 in Chennai on January 8, 2010. Wawrinka won the first set 7-6 as the match continues. AFP PHOTO/ DIBYANGSHU SHARKAR © AFP | AFP
AUCKLAND, NEW ZEALAND - JANUARY 13: Simon Greul of Germany plays a forehand during his second round match against Tommy Robredo of Spain on day three of the Heineken Open at the ASB Tennis Centre on January 13, 2010 in Auckland, New Zealand. (Photo by Phil Walter/Getty Images)
AUCKLAND, NEW ZEALAND - JANUARY 13: Simon Greul of Germany plays a forehand during his second round match against Tommy Robredo of Spain on day three of the Heineken Open at the ASB Tennis Centre on January 13, 2010 in Auckland, New Zealand. (Photo by Phil Walter/Getty Images) © Getty Images/Getty | Getty Images
ARCHIV - Tennis ATP-Turnier German Open am Rothenbaum in Hamburg (Archivfoto vom 20.07.2009). Der deutsche Spieler Daniel Brands aus Deutschland schlägt eine Rückhand in seinem Erstrundenmatch gegen Crivoi aus Rumänien. Brands ist im Achtelfinale ausgeschieden, nach einer wiederum starken Vorstellung musste sich der Wildcard-Spieler am Donnerstag mit 5:7, 5:7 dem Franzosen Mathieu geschlagen geben. Foto: Malte Christians dpa/lno (zu dpa-KORR:
ARCHIV - Tennis ATP-Turnier German Open am Rothenbaum in Hamburg (Archivfoto vom 20.07.2009). Der deutsche Spieler Daniel Brands aus Deutschland schlägt eine Rückhand in seinem Erstrundenmatch gegen Crivoi aus Rumänien. Brands ist im Achtelfinale ausgeschieden, nach einer wiederum starken Vorstellung musste sich der Wildcard-Spieler am Donnerstag mit 5:7, 5:7 dem Franzosen Mathieu geschlagen geben. Foto: Malte Christians dpa/lno (zu dpa-KORR: "«Riese» Brands am Rothenbaum gestoppt" vom 23.07.2009) +++(c) dpa - Bildfunk+++ © dpa/DPA | dpa
HAMBURG, GERMANY - JULY 20: Philipp Petzschner of Germany reacts during the match against Florent Serra of France during day one of the International German Open at Rothenbaum Tennis Centre on July 20, 2009 in Hamburg, Germany. (Photo by Martin Rose/Bongarts/Getty Images)
HAMBURG, GERMANY - JULY 20: Philipp Petzschner of Germany reacts during the match against Florent Serra of France during day one of the International German Open at Rothenbaum Tennis Centre on July 20, 2009 in Hamburg, Germany. (Photo by Martin Rose/Bongarts/Getty Images) © Bongarts/Getty Images/Getty | Bongarts/Getty Images
AUCKLAND, NEW ZEALAND - JANUARY 04: Julia Goerges of Germany celebrates winning a point in her first round match against Yanina Wickmayer of Belgium during day one of the ASB Classic at ASB Tennis Centre on January 4, 2010 in Auckland, New Zealand. (Photo by Hannah Johnston/Getty Images)
AUCKLAND, NEW ZEALAND - JANUARY 04: Julia Goerges of Germany celebrates winning a point in her first round match against Yanina Wickmayer of Belgium during day one of the ASB Classic at ASB Tennis Centre on January 4, 2010 in Auckland, New Zealand. (Photo by Hannah Johnston/Getty Images) © Getty Images/Getty | Getty Images
Kristina Barrois of Germany hits a forehand return against Dinara Safina of Russia during the fourth day of the 2009 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA 03 September 2009. The Open runs through 13 September 2009. EPA/JASON SZENES +++(c) dpa - Bildfunk+++
Kristina Barrois of Germany hits a forehand return against Dinara Safina of Russia during the fourth day of the 2009 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA 03 September 2009. The Open runs through 13 September 2009. EPA/JASON SZENES +++(c) dpa - Bildfunk+++ © picture-alliance/ dpa/EPA | picture-alliance/ dpa
Andrea Petkovic of Germany hits a forehand during her semi final match against Clijsters of Belgium at the Brisbane International in Brisbane, Australia on 08 January 2010. Clijsters defeated Petkovic 6-4 6-2. EPA/DAVE HUNT AUSTRALIA AND NEW ZEALAND OUT +++(c) dpa - Bildfunk+++
Andrea Petkovic of Germany hits a forehand during her semi final match against Clijsters of Belgium at the Brisbane International in Brisbane, Australia on 08 January 2010. Clijsters defeated Petkovic 6-4 6-2. EPA/DAVE HUNT AUSTRALIA AND NEW ZEALAND OUT +++(c) dpa - Bildfunk+++ © dpa/DPA | dpa
Anna-Lena Groenefeld of Germany serves to number 11 seed Daniela Hantuchova of Slovakia during their first round match on the second day of the 2008 US Open tennis tournament in Flushing Meadows, New York, USA, 26 August 2008. Grönefeld won 6-4, 6-2. EPA/ANDREW GOMBERT (zu dpa 0776) +++(c) dpa - Bildfunk+++
Anna-Lena Groenefeld of Germany serves to number 11 seed Daniela Hantuchova of Slovakia during their first round match on the second day of the 2008 US Open tennis tournament in Flushing Meadows, New York, USA, 26 August 2008. Grönefeld won 6-4, 6-2. EPA/ANDREW GOMBERT (zu dpa 0776) +++(c) dpa - Bildfunk+++ © dpa/DPA | dpa
REFILE - CORRECTING LISICKI'S NATIONALITY Victoria Azarenka of Belarus hits a return against Sabine Lisicki of Germany during the Sydney International tennis tournament January 11, 2010. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS)
REFILE - CORRECTING LISICKI'S NATIONALITY Victoria Azarenka of Belarus hits a return against Sabine Lisicki of Germany during the Sydney International tennis tournament January 11, 2010. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SPORT TENNIS) © REUTERS | REUTERS