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Spain's Rafael Nadal serves to Spain's David Ferrer during the 2013 French tennis Open final at the Roland Garros stadium in Paris on June 9, 2013. MIGUEL MEDINA/AFP/Getty Images ( 520432413 )

David Ferrer of Spain plays a forehand during the Men's Singles final match against Rafael Nadal of Spain during day fifteen of the French Open at Roland Garros on June 9, 2013 in Paris, France. (Photo by Clive Brunskill/Getty Images) ( 170233507 )

Rafael Nadal of Spain hits a return to compatriot David Ferrer during their men's singles final match at the French Open tennis tournament at the Roland Garros stadium in Paris June 9, 2013. REUTERS/Philippe Wojazer ( TENNIS-OPEN/ )

Spain's David Ferrer returns the ball to compatriot Rafael Nadal during the men's final match of the French Open tennis tournament at the Roland Garros stadium Sunday, June 9, 2013 in Paris. (AP Photo/Petr David Josek) ( France Tennis French Open )

Spain's Rafael Nadal returns to Spain's David Ferrer during their French tennis Open final match at the Roland Garros stadium in Paris on June 9, 2013. PATRICK KOVARIK/AFP/Getty Images ( 520433657 )

Spain's David Ferrer returns a shot to Spain's Rafael Nadal during the 2013 French tennis Open final at the Roland Garros stadium in Paris on June 9, 2013. KENZO TRIBOUILLARD/AFP/Getty Images ( 520432952 )

An anti gay-marriage activist holding a flare is evacuated by a member of the security as he protest on the central court during the 2013 French tennis Open final match at the Roland Garros stadium in Paris on June 9, 2013. MARTIN BUREAU/AFP/Getty Images ( 520433426 )

A security guard restrains a protester after he lit a flare and ran on court before the start of a game in the Men's Singles final match between Rafael Nadal of Spain and David Ferrer of Spain during day fifteen of the French Open at Roland Garros on June 9, 2013 in Paris, France. (Photo by Clive Brunskill/Getty Images) ( 170233687 )

Olympic champion Usain Bolt and President of the International Tennis Federation Francesco Bitti Ricci watch the Men's Singles final match between Rafael Nadal of Spain and David Ferrer of Spain during day fifteen of the French Open at Roland Garros on June 9, 2013 in Paris, France. (Photo by Matthew Stockman/Getty Images) ( 170234383 )

Spain's Rafael Nadal serves to Spain's David Ferrer during their French tennis Open final match at the Roland Garros stadium in Paris on June 9, 2013. PATRICK KOVARIK/AFP/Getty Images ( 520433096 )

David Ferrer of Spain plays a forehand during the Men's Singles final match against Rafael Nadal of Spain during day fifteen of the French Open at Roland Garros on June 9, 2013 in Paris, France. (Photo by Clive Brunskill/Getty Images) ( 170227851 )

Rafael Nadal of Spain plays a backhand during the Men's Singles final match against David Ferrer of Spain on day fifteen of the French Open at Roland Garros on June 9, 2013 in Paris, France. (Photo by Clive Brunskill/Getty Images) ( 170227867 )

Spain's David Ferrer returns a shot to Spain's Rafael Nadal during the 2013 French tennis Open final at the Roland Garros stadium in Paris on June 9, 2013. MIGUEL MEDINA/AFP/Getty Images ( 520433161 )

Spain's Rafael Nadal reacts after defeating compatriot David Ferrer in the men's final match of the French Open tennis tournament at the Roland Garros stadium Sunday, June 9, 2013 in Paris. Nadal won 6-3, 6-2, 6-3. (AP Photo/Petr David Josek) ( France Tennis French Open )

Spain's Rafael Nadal celebrates as he wins the 2013 French tennis Open final against Spain's David Ferrer at the Roland Garros stadium in Paris on June 9, 2013. ALEXIS REAU/AFP/Getty Images ( 520436213 )

Spain's David Ferrer holds his towel in his match against compatriot Rafael Nadal in the final of the French Open tennis tournament, at Roland Garros stadium in Paris, Sunday June 9, 2013. Nadal won in three sets 6-3, 6-2, 6-3. (AP Photo/Michel Euler) ( France Tennis French Open )

Spain's Rafael Nadal (R) and Spain's David Ferrer pose with their trophies after their 2013 French tennis Open final at the Roland Garros stadium in Paris on June 9, 2013. Nadal won the tournament. MIGUEL MEDINA/AFP/Getty Images ( 520435536 )

Spain's Crown Prince Felipe (2nd R) takes a photograph during the men's singles final match between Rafael Nadal of Spain and compatriot David Ferrer at the French Open tennis tournament at the Roland Garros stadium in Paris June 9, 2013. REUTERS/Stephane Mahe ( TENNIS-OPEN )

Spain's Rafael Nadal listen to his national anthem during the trophy ceremony after he won the 2013 French tennis Open final against Spain's David Ferrer at the Roland Garros stadium in Paris on June 9, 2013. KENZO TRIBOUILLARD/AFP/Getty Images ( 520434665 )

Xisca Perello, the girlfriend of Rafael Nadal of Spain watches his Men's Singles final match against David Ferrer of Spain during day fifteen of the French Open at Roland Garros on June 9, 2013 in Paris, France. (Photo by Clive Brunskill/Getty Images) ( 170235931 )

Spain's Rafael Nadal holds the trophy with seven inscriptions of his name after winning the French Open for the eight time, defeating compatriot David Ferrer in three sets 6-3, 6-2, 6-3, in the final of the French Open tennis tournament, at Roland Garros stadium in Paris, Sunday June 9, 2013. (AP Photo/Christophe Ena) ( APTOPIX France Tennis French Open )

Spain's Rafael Nadal bites the trophy after winning against compatriot David Ferrer in three sets 6-3, 6-2, 6-3, in the final of the French Open tennis tournament, at Roland Garros stadium in Paris, Sunday June 9, 2013. (AP Photo/Christophe Ena) ( APTOPIX France Tennis French Open )