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BUENOS AIRES, Argentina (AP) - Top-seeded defending champion Dominic Thiem of Austria advanced to the Argentina Open semifinals Friday, beating Uruguay's Pablo Cuevas 4-6, 6-4, 6-3. Thiem will face fourth-seeded home favorite Diego Schwartzman on Saturday. Schwartzman beat Spain's Albert Ramos Vinolas 6-1, 7-5. In the other quarterfinals, third-seeded Marco ...