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BUENOS AIRES, ARGENTINA - FEBRUARY 27: Rafael Nadal of Spain takes a forehand shot during a singles match between Rafael Nadal of Spain and Federico Delbonis of Argentina as part of ATP Argentina Open at Buenos Aires Lawn Tennis Club on February 27, 2015 in Buenos Aires, Argentina. (Photo by Gabriel Rossi/LatinContent/Getty Images)

BUENOS AIRES, ARGENTINA - FEBRUARY 27: Rafael Nadal of Spain takes a forehand shot during a singles match between Rafael Nadal of Spain and Federico Delbonis of Argentina as part of ATP Argentina Open at Buenos Aires Lawn Tennis Club on February 27, 2015 in Buenos Aires, Argentina. (Photo by Gabriel Rossi/LatinContent/Getty Images)