Imogen Davis catches Rufus, a Harris hawk, in the stands above Centre Court at Wimbledon. Rufus scares off pigeons who try to eat the ryegrass on the tennis courts. Peter Macdiarmid/Getty Images hide caption

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France's Marion Bartoli celebrates her Wimbledon women's singles championship. The BBC has apologized to Bartoli for remarks an announcer made about her appearance. Dominic Lipinski /PA Photos/Landov hide caption

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France's Marion Bartoli celebrates her women's singles championship at The All England Lawn Tennis and Croquet Club in Wimbledon. Dominic Lipinski /PA Photos/Landov hide caption

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Serbia's Novak Djokovic (left) embraces Argentina's Juan Martin Del Potro after their match on day 11 of the 2013 Championships at Wimbledon. Carl Court/AFP/Getty Images hide caption

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Defending champion Serena Williams lost to Sabine Lisicki of Germany 6-2 1-6 6-4 in the fourth round of the Wimbledon Championships. Andy Rain/EPA /Landov hide caption

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Seven-time Wimbledon champion Roger Federer leaves the court Wednesday, after losing in the second round to Ukraine's Sergiy Stakhovsky. Adrian Dennis/AFP/Getty Images hide caption

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Steve Darcis of Belgium, left, shakes hands with Rafael Nadal of Spain Monday, after winning their first-round match at the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club. Mike Hewitt/Getty Images hide caption

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Roger Federer of Switzerland (left) and Andy Murray of Great Britain hold up their trophies after the men's singles final match at Wimbledon Sunday. Clive Brunskill/Getty Images hide caption

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Venus Williams stretches for a return in her first-round defeat to Russia's Elena Vesnina on the first day of the Wimbledon Championships. For Williams, 32, it was her earliest exit from Wimbledon in 15 years. Miguel Medina/AFP/Getty Images hide caption

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Venus Williams hits a return to Tsvetana Pironkova during their match Monday. With the loss, Williams followed her sister, Serena, out of this year's tournament. Carl De Souza/AFP/Getty Images hide caption

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