Photos: French Open Round One

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Official tennis balls of the 2014 French Open are pictured on a court at the Roland Garros stadium in Paris on May 22, 2014, ahead of the French tennis open. AFP PHOTO / MIGUEL MEDINA
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Spain's tennis player Rafael Nadal (L) and US tennis player Serena Williams pose for photographers on a tennis court built in front of the Eiffel tower ahead of the 2014 French Open in Paris on May 22, 2014. AFP PHOTO / MIGUEL MEDINA
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China's Li Na returns the ball to France's Kristina Mladenovic during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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Italy's Sara Errani returns the ball to USA's Madison Keys during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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USA's Madison Keys returns the ball to Italy's Sara Errani during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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Italy's Sara Errani reacts during her French tennis Open first round match against USA's Madison Keys at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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France's Laurent Lokoli reacts after losing a point to USA's Steve Johnson during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / KENZO TRIBOUILLARD
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Girlfriend of Great Britain's Andy Murray, Kim Sears, applauds as she attends the French tennis Open first round match between Andy Murray and Kazakhstan's Andrey Golubev at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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France's Michael Llodra gets medical assistance by a physiotherapist during his French tennis Open first round match against Spain's Fernando Verdasco at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / PASCAL GUYOT
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France's Gael Monfils practices during a training session on the eve of the start of the 2014 French tennis Open at the Roland Garros stadium in Paris on May 24, 2014. AFP PHOTO / KENZO TRIBOUILLARD
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France's Alize Cornet reacts as she practices during a training session on the eve of the start of the 2014 French tennis Open at the Roland Garros stadium in Paris on May 24, 2014. AFP PHOTO / KENZO TRIBOUILLARD
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China's Li Na returns the ball to France's Kristina Mladenovic during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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USA's Shelby Rogers returns the ball to Russia's Ekaterina Makarova during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / PATRICK KOVARIK
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China's Li Na returns the ball to France's Kristina Mladenovic during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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Russia's Ekaterina Makarova returns the ball to USA's Shelby Rogers during their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / PATRICK KOVARIK
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France's Gael Monfils shakes hands with Romania's Victor Hanescu at the end of their French tennis Open first round match at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / DOMINIQUE FAGET
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France's Kristina Mladenovic celebrates after winning her French tennis Open first round match against China's Li Na at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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France's Kristina Mladenovic celebrates after winning her French tennis Open first round match against China's Li Na at the Roland Garros stadium in Paris on May 27, 2014. AFP PHOTO / MIGUEL MEDINA
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Official tennis balls of the 2014 French Open are pictured on a court at the Roland Garros stadium in Paris on May 22, 2014, ahead of the French tennis open. AFP PHOTO / MIGUEL MEDINA