Francesca Schiavone of Italy returns a shot to compatriot Maria Elena Camerin during the U.S. Open tennis tournament in New York September 1, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: SPORT TENNIS)

Maria Elena Camerin of Italy serves against compatriot Francesca Schiavone during the U.S. Open tennis tournament in New York September 1, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: SPORT TENNIS)

Francesca Schiavone of Italy serves to compatriot Maria Elena Camerin during the U.S. Open tennis tournament in New York September 1, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: SPORT TENNIS)

Francesca Schiavone of Italy serves to compatriot Maria Elena Camerin during the U.S. Open tennis tournament in New York, September 1, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: SPORT TENNIS)

Belgium's Kim Clijsters serves to Italy's Maria Elena Camerin at the 2010 Wimbledon Tennis Championships in London June 21, 2010. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Belgium's Kim Clijsters serves to Italy's Maria Elena Camerin at the 2010 Wimbledon Tennis Championships in London June 21, 2010. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Italy's Maria Elena Camerin reacts during her match against Belgium's Kim Clijsters at the 2010 Wimbledon Tennis Championships in London June 21, 2010. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Italy's Maria Elena Camerin returns a shot to Belgium's Kim Clijsters at the 2010 Wimbledon Tennis Championships in London June 21, 2010. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Belgium's Kim Clijsters returns a shot to Italy's Maria Elena Camerin at the 2010 Wimbledon Tennis Championships in London June 21, 2010. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Marion Bartoli of France prepares to serve to Maria Elena Camerin of Italy during the French Open tennis tournament at Roland Garros in Paris May 25, 2010 REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Marion Bartoli of France returns the ball to Maria Elena Camerin of Italy during the French Open tennis tournament at Roland Garros in Paris May 25, 2010 REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Marion Bartoli of France returns the ball to Maria Elena Camerin of Italy during the French Open tennis tournament at Roland Garros in Paris May 25, 2010 REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Marion Bartoli of France waves after winning her match against Maria Elena Camerin of Italy at the French Open tennis tournament at Roland Garros in Paris May 25, 2010. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Marion Bartoli of France reacts during her match against Maria Elena Camerin of Italy at the French Open tennis tournament at Roland Garros in Paris May 25, 2010. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Marion Bartoli of France plays a shot during her match against Maria Elena Camerin of Italy at the French Open tennis tournament at Roland Garros in Paris, May 25, 2010. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Maria Elena Camerin of Italy plays a shot during her match against Marion Bartoli of France at the French Open tennis tournament at Roland Garros in Paris May 25, 2010. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT TENNIS)

Slovenia's Polona Hercog hits a return to Italy's Maria Elena Camerin during their first round match at the WTA tennis tournament of Luxembourg October 20, 2009. REUTERS/Sebastien Pirlet (LUXEMBOURG SPORT TENNIS)

Shahar Peer of Israel returns the ball to Maria Elena Camerin of Italy at the Wimbledon tennis championships, in London June 22, 2009. REUTERS/Kieran Doherty (BRITAIN SPORT TENNIS)

Elena Dementieva of Russia returns the ball to Maria Elena Camerin of Italy during their match at the Wimbledon tennis championships in London June 25, 2008. REUTERS/Toby Melville (BRITAIN)

Elena Dementieva of Russia is seen through her racquet during her match against Maria Elena Camerin of Italy at the Wimbledon tennis championships in London June 25, 2008. REUTERS/Toby Melville (BRITAIN)

Maria Elena Camerin of Italy returns the ball to Elena Dementieva of Russia during their match at the Wimbledon tennis championships in London June 25, 2008. REUTERS/Toby Melville (BRITAIN)

Maria Elena Camerin of Italy reacts during her match against Elena Dementieva of Russia during their match at the Wimbledon tennis championships in London June 25, 2008. REUTERS/Toby Melville (BRITAIN)

Italy's Maria Elena Camerin throws her racquet after losing a point against Mexico's Melissa Torres during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Italy's Maria Elena Camerin throws her racket after losing a point against Mexico's Melissa Torres during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Italy's Maria Elena Camerin throws her racket after losing a point against Mexico's Melissa Torres during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Italy's Maria Elena Camerin returns the ball to Mexico's Melissa Torres during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Italy's Maria Elena Camerin reacts after losing a point against Mexico's Melissa Torres during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Mexico's Melissa Torres returns the ball to Italy's Maria Elena Camerin during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Mexico's Melissa Torres returns the ball to Italy's Maria Elena Camerin during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

Mexico's Melissa Torres celebrates after defeating Italy's Maria Elena Camerin during their match at the Mexican Open tennis tournament in Acapulco February 25, 2008. REUTERS/Daniel Aguilar (MEXICO)

China's Li Na signs autographs for fans after winning against Italy's Maria Elena Camerin at the Australian Open tennis tournament in Melbourne January 17, 2008. REUTERS/Stuart Milligan (AUSTRALIA)

Italy's Maria Elena Camerin hits a shot to China's Li Na at the Australian Open tennis tournament in Melbourne January 17, 2008. REUTERS/Stuart Milligan (AUSTRALIA)

China's Li Na hits a shot to Italy's Maria Elena Camerin at the Australian Open tennis tournament in Melbourne January 17, 2008. REUTERS/Stuart Milligan (AUSTRALIA)

Italy's Maria Elena Camerin hits a shot to China's Li Na at the Australian Open tennis tournament in Melbourne January 17, 2008. REUTERS/Stuart Milligan (AUSTRALIA)

China's Li Na hits a shot to Italy's Maria Elena Camerin at the Australian Open tennis tournament in Melbourne January 17, 2008. REUTERS/Stuart Milligan (AUSTRALIA)

China's Li Na hits a shot to Italy's Maria Elena Camerin at the Australian Open tennis tournament in Melbourne January 17, 2008. REUTERS/Stuart Milligan (AUSTRALIA)

Serena Williams of the U.S.waves to fans after defeating Maria Elena Camerin of Italy during her match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. reacts in the last game of her final set against Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S.waves to fans after defeating Maria Elena Camerin of Italy during her match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Shannon Stapleton (UNITED STATES)

Serena Williams of the U.S. reacts in the last game of her final set against Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Shannon Stapleton (UNITED STATES)

Serena Williams of the U.S. serves to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Shannon Stapleton (UNITED STATES)

Serena Williams of the U.S. hits a backhand to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Maria Elena Camerin of Italy gets up off the court after falling down against Serena Williams of the U.S.during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Maria Elena Camerin of Italy slips and falls on the court as she plays Serena Williams of the U.S. during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. celebrates winning the first set against Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. celebrates winning the first set against Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. pauses during her match against Maria Elena Camerin of Italy at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Maria Elena Camerin of Italy reacts during her match against Serena Williams of the U.S. at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. yells out as she goes up 6-5 in the first set against Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. hits a forehand to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Oracene Price, the mother of U.S. tennis player Serena Williams, watches from the stands her daughter plays Maria Elena Camerin of Italy during their night match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S .looks down as her earring swings from her ear before serving to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Shannon Stapleton (UNITED STATES)

Serena Williams of the U.S. hits a return to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. hits a return to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Serena Williams of the U.S. keeps her eyes on the ball as she hits a forehand to Maria Elena Camerin of Italy during their match at the U.S. Open tennis tournament in Flushing Meadows, New York, August 29, 2007. REUTERS/Jeff Zelevansky (UNITED STATES)

Italy's Maria Elena Camerin returns a ball to Belgium's Justine Henin during their match at the German Open tennis tournament in Berlin May 11, 2007. REUTERS/Tobias Schwarz (GERMANY)

Italy's Maria Elena Camerin returns a ball to Belgium's Justine Henin during their match at the German Open tennis tournament in Berlin May 11, 2007. REUTERS/Tobias Schwarz (GERMANY)

Belgium's Justine Henin serves a ball to Italy's Maria Elena Camerin during their match at the German Open tennis tournament in Berlin May 11, 2007. REUTERS/Tobias Schwarz (GERMANY)

Belgium's Justine Henin serves a ball to Italy's Maria Elena Camerin during the match at the 'German Open' tennis tournament in Berlin May 11, 2007. REUTERS/Tobias Schwarz (GERMANY)

Belgium's Justine Henin returns a ball to Italy's Maria Elena Camerin during their match at the German Open tennis tournament in Berlin May 11, 2007. REUTERS/Tobias Schwarz (GERMANY)