Argentina's Horacio Zeballos serves to Uruguay's Pablo Cuevas at the Brazil Open ATP tennis tournament in Sao Paulo, Brazil, Monday, Feb. 24, 2014. (AP Photo/Andre Penner)

Brazil Open ATP Tennis

Argentina's Horacio Zeballos serves to Uruguay's Pablo Cuevas at the Brazil Open ATP tennis tournament in Sao Paulo, Brazil, Monday, Feb. 24, 2014. (AP Photo/Andre Penner)

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