[Yahoo] Calleri upsets Acasuso at Copa Telmex (AP)

Unseeded Agustin Calleri beat Argentine countryman Jose Acasuso 6-3, 3-6, 6-4 in the quarterfinals of the Copa Telmex on Friday. The fourth-seeded Acasuso had his eight-match winning streak snapped. Even though he broke Calleri twice in the final set, Calleri broke back both times and won off Acasuso's serve in the final game in blustery winds on clay at Buenos Aires Lawn Tennis Club.

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