Britain's Naomi Cavaday returns the ball during her match against Switzerland's Stefanie Voegele at the Edgbaston Classic tennis tournament in Birmingham, England, June 11, 2009. REUTERS/Phil Noble (BRITAIN SPORT TENNIS) 

Britain's Naomi Cavaday returns the ball during her match against Switzerland's Stefanie Voegele at the Edgbaston Classic tennis tournament in Birmingham, England, June 11, 2009. REUTERS/Phil Noble (Britain SPORT TENNIS) 

Switzerland's Stefanie Voegele returns the ball during her match against Britain's Naomi Cavaday at the Edgbaston Classic tennis tournament in Birmingham, England, June 11, 2009. REUTERS/Phil Noble (BRITAIN SPORT TENNIS) 

Switzerland's Stefanie Voegele returns the ball during her match against Britain's Naomi Cavaday at the Edgbaston Classic tennis tournament in Birmingham, England, June 11, 2009. REUTERS/Phil Noble (Britain SPORT TENNIS) 

Britain's Naomi Cavaday returns the ball to Thailand's Tamarine Tanasugarn during their match at the Edgbaston Classic tennis tournament in Birmingham, England, June 10, 2009. REUTERS/Phil Noble (BRITAIN SPORT TENNIS) 

Britain's Naomi Cavaday returns the ball to Thailand's Tamarine Tanasugarn during their match at the Edgbaston Classic tennis tournament in Birmingham, England, June 10, 2009. REUTERS/Phil Noble (BRITAIN SPORT TENNIS) 

Thailand's Tamarine Tanasugarn returns the ball to Britain's Naomi Cavaday during their match at the Edgbaston Classic tennis tournament in Birmingham, England, June 10, 2009. REUTERS/Phil Noble (BRITAIN SPORT TENNIS) 

Thailand's Tamarine Tanasugarn returns the ball to Britain's Naomi Cavaday during their match at the Edgbaston Classic tennis tournament in Birmingham, England, June 10, 2009. REUTERS/Phil Noble (BRITAIN SPORT TENNIS) 

Venus Williams of the U.S. (L) shakes hands with the umpire as Naomi Cavaday (2L) of Britain walks past after Williams won their match at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. (bottom) and Naomi Cavaday of Britain shake hands after Williams won their match at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. returns the ball to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. serves to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. (bottom) and Naomi Cavaday of Britain play their match on centre court at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. (bottom) and Naomi Cavaday of Britain play their match on centre court at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. (bottom) serves to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. prepares to serve to Naomi Cavaday of Britain during their match at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. returns the ball to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Naomi Cavaday of Britain sits during a break in a her match against Venus Williams of the U.S. at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Naomi Cavaday of Britain returns the ball to Venus Williams of the U.S. during their match at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. returns the ball to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. is seen through the net during a break in her match against Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. holds a towel during a break in her match against Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. serves to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Naomi Cavaday of Britain reacts after winning a point from Venus Williams of the U.S. during their match at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. serves to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. walks onto centre court before her match with Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. returns the ball to Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. serves to Naomi Cavaday of Britain during their match at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Venus Williams of the U.S. warms up before her match against Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 24, 2008. REUTERS/Kevin Lamarque (BRITAIN) 

Switzerland's Martina Hingis adjusts her strings during her women's singles match with Britain's Naomi Cavaday at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (BRITAIN) 

Switzerland's Martina Hingis looks down during her women's singles match with Britain's Naomi Cavaday at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (BRITAIN) 

Switzerland's Martina Hingis plays a return to Britain's Naomi Cavaday during their women's singles match at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (BRITAIN) 

Britain's Naomi Cavaday gestures during her women's singles match against Switzerland's Martina Hingis at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (BRITAIN) 

Martina Hingis of Switzerland wraps herself in a towel to keep warm before the start of her match against Naomi Cavaday of Britain at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (BRITAIN) 

Britain's Naomi Cavaday returns a shot to Switzerland's Martina Hingis during their singles match at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (BRITAIN) 

Britain's Naomi Cavaday returns a shot to Switzerland's Martina Hingis during their singles match at the Wimbledon tennis championships in London June 25, 2007. REUTERS/David Moir (UNITED KINGDOM) 

Japan's Ai Sugiyama plays a shot to Britain's Naomi Cavaday during their match at the Wimbledon tennis championships in London June 27, 2006. REUTERS/Luke MacGregor (BRITAIN) 

Japan's Ai Sugiyama plays a shot to Britain's Naomi Cavaday during their match at the Wimbledon tennis championships in London June 27, 2006. REUTERS/Luke MacGregor (BRITAIN) 

Britain's Naomi Cavaday plays a shot to Japan's Ai Sugiyama during their match at the Wimbledon tennis championships in London June 27, 2006. REUTERS/Luke MacGregor (BRITAIN) 

Japan's Ai Sugiyama plays a shot to Britain's Naomi Cavaday during their match at the Wimbledon tennis championships in London June 26, 2006. REUTERS/Luke MacGregor (BRITAIN) 

Japan's Ai Sugiyama plays a shot to Britain's Naomi Cavaday during their match at the Wimbledon tennis championships in London June 26, 2006. REUTERS/Luke MacGregor (BRITAIN) 

Japan's Ai Sugiyama plays a shot to Britain's Naomi Cavaday during their match at the Wimbledon tennis championships in London June 26, 2006. REUTERS/Luke MacGregor (BRITAIN) 

Japan's Ai Sugiyama plays a shot to Britain's Naomi Cavaday during their match at the Wimbledon tennis championships in London June 26, 2006. REUTERS/Luke MacGregor (BRITAIN)