Jelena Ristic, the girlfiend of Novak Djokovic of Serbia, sits on Centre Court for Djokovic's men's singles final match against Rafael Nadal of Spain at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Jelena Ristic, the girlfiend of Novak Djokovic of Serbia, reacts after Djokovic defeated Rafael Nadal of Spain in the men's singles final match at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

Jelena Ristic, the girlfiend of Novak Djokovic of Serbia, sits on Centre Court for Djokovic's men's singles final match against Rafael Nadal of Spain at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

Jelena Ristic, the girlfiend of Novak Djokovic of Serbia, sits on Centre Court for Djokovic's men's singles final match against Rafael Nadal of Spain at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

The mother of Rafael Nadal of Spain, Ana Maria Parera (L), his sister Maria Isabel Nadal (R) and his girlfriend, Maria Francisca Perello, sit on Centre Court for Nadal's men's singles final match against Novak Djokovic of Serbia at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

The mother of Rafael Nadal of Spain, Ana Maria Parera (FRONT), his sister Maria Isabel Nadal (C) and his girlfriend, Maria Francisca Perello, arrive on Centre Court for Nadal's men's singles final match against Novak Djokovic of Serbia at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

The girlfriend of Rafael Nadal of Spain Maria Francisca Perello, sits on Centre Court for Nadal's men's singles final match against Novak Djokovic of Serbia at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

The girlfriend of Rafael Nadal of Spain, Maria Francisca Perello, arrives on Centre Court for Nadal's men's singles final match against Novak Djokovic of Serbia at the Wimbledon tennis championships in London July 3, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

Sasha Vujacic, the boyfriend of Maria Sharapova of Russia, sits on Centre Court for the final match between Sharapova and Petra Kvitova of the Czech Republic at the Wimbledon tennis championships in London July 2, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT SOCIETY SPORT TENNIS)

The mother of Rafael Nadal of Spain Ana Maria Parera (L), his girlfriend Maria Francisca Perello (C) and his sister Maria Isabel Nadal sit on Centre Court for the match between Nadal and Andy Murray of Britain at the Wimbledon tennis championships in London July 1, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

The mother of Rafael Nadal of Spain Ana Maria Parera (L), and his girlfriend Maria Francisca Perello, prepare to leave Centre Court after the match between Nadal and Andy Murray of Britain at the Wimbledon tennis championships in London July 1, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

The mother of Andy Murray of Britain, Judy (2nd L), and his girlfriend Kim Sears (2nd R), sit on Centre Court for the match between Murray and Rafael Nadal of Spain at the Wimbledon tennis championships in London July 1, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

Jelena Ristic, the girlfriend of Novak Djokovic of Serbia, sits on Centre Court for the semi-final match between Djokovic amd Jo-Wilfried Tsonga of France at the Wimbledon tennis championships in London July 1, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

The girlfriend of Rafael Nadal of Spain, Maria Francisca Perello, arrives on Centre Court for the match between Nadal and Andy Murray of Britain at the Wimbledon tennis championships in London July 1, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Maria Francisca Perello, the girlfriend of Rafael Nadal of Spain, leaves Court 1 after Nadal defeated Mardy Fish of the U.S. in their quarter-final match at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

Maria Francisca Perello, the girlfriend of Rafael Nadal of Spain (L), and Maria Isabel Nadal, the sister of Nadal, stand on Court 1 after Nadal defeated Mardy Fish of the U.S. in their quarter-final match at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

Kim Sears (2nd R), the girlfriend of Andy Murray of Britain, sits with his mother, Judy (L), during his quarter-final match against Feliciano Lopez of Spain at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Kim Sears (C), the girlfriend of Andy Murray of Britain, applauds after Murray defeated Feliciano Lopez of Spain in their quarter-final match at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Kim Sears, the girlfriend of Andy Murray of Britain, is greeted by artist manager and television producer Simon Fuller, before the quarter-final match between Murray and Feliciano Lopez of Spain at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Mirka Federer, the wife of Roger Federer of Switzerland, sits on Centre Court for the quarter-final match between Federer and Jo-Wilfried Tsonga of France at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Mirka Federer, the wife of Roger Federer of Switzerland, sits on Centre Court for the quarter-final match between Federer and Jo-Wilfried Tsonga of France at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Mirka Federer, the wife of Roger Federer of Switzerland, arrives on Centre Court for the quarter-final match between Federer and Jo-Wilfried Tsonga of France at the Wimbledon tennis championships in London June 29, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Maria Francisca Perello, the girlfriend of Rafael Nadal of Spain, sits on Centre Court for Nadal's match against Juan Martin Del Potro of Argentina at the Wimbledon tennis championships in London June 27, 2011. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT SOCIETY SPORT TENNIS)

Maria Francisca Perello, the girlfriend of Rafael Nadal of Spain, sits on Centre Court for Nadal's match against Juan Martin Del Potro of Argentina at the Wimbledon tennis championships in London June 27, 2011. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Maria Francisca Perello, the girlfriend of Rafael Nadal of Spain, leaves Court 1 after Nadal's match against Gilles Muller of Luxembourg at the Wimbledon tennis championships in London June 25, 2011. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Jelena Ristic, the girlfriend of Novak Djokovic of Serbia, watches the match between Djokovic and Jeremy Chardy of France at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Kim Sears, the girlfriend of Andy Murray of Britain, sits on Centre Court for the match between Murray and Ivan Ljubicic of Croatia at the Wimbledon tennis championships in London June 24, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Kim Sears, the girlfriend of Andy Murray of Britain, arrives on Centre Court for the match between Murray and Ivan Ljubicic of Croatia at the Wimbledon tennis championships in London June 24, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Judy Murray (FRONT L), the mother of Andy Murray of Britain, and his girlfriend Kim Sears (FRONT 2nd L), applaud after Murray defeated Tobias Kamke of Germany at the Wimbledon tennis championships in London June 22, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Kim Sears, the girlfriend of Andy Murray of Britain, sits on Court 1 to watch Murray's match against Tobias Kamke of Germany at the Wimbledon tennis championships in London June 22, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Kim Sears, the girlfriend of Andy Murray of Britain, sits on Court 1 to watch Murray's match against Tobias Kamke of Germany at the Wimbledon tennis championships in London June 22, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Judy Murray (L), the mother of Andy Murray of Britain, sits with Murray's girlfriend Kim Sears(C), on Centre Court for his match against Daniel Gimeno-Traver of Spain at the Wimbledon tennis championships in London June 20, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Brooklyn Decker, the wife of Andy Roddick of the U.S., sits on Centre Court for Roddick's match against Victor Hanescu of Romania at the Wimbledon tennis championships in London June 22, 2011. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SPORT TENNIS)

Brooklyn Decker, the wife of Andy Roddick of the U.S., applauds after he defeated Andreas Beck of Germany at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)

The wife of Roger Federer of Switzerland, Mirka Federer, sits on Court 1 for Federer's match against Mikhail Youzhny of Russia at the Wimbledon tennis championships in London June 27, 2011. REUTERS/Toby Melville (BRITAIN - Tags: SPORT TENNIS)

Mirka Federer, the wife of Roger Federer of Switzerland, sits on Centre Court for Federer's match against David Nalbandian of Argentina at the Wimbledon tennis championships in London June 25, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

Mirka Federer, the wife of Roger Federer of Switzerland, watches his match against Mikhail Kukushkin of Kazakhstan at the Wimbledon tennis championships in London June 21, 2011. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT TENNIS)

The wife of Roger Federer of Switzerland, Mirka Vavrinec, arrives on Centre Court for Federer's match against Adrian Mannarino of France at the Wimbledon tennis championships in London June 23, 2011. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT TENNIS)