ACAPULCO, Mexico (AP) -- Florian Mayer of Germany beat Facundo Bagnis of Argentina 6-2, 6-4 to advance to the second round of the Mexican Open on Monday.

The fifth-seeded Mayer took advantage of seven aces to get past Bagnis in just over an hour at The Fairmont Acapulco Princess. Mayer had four break opportunities and converted on three of them.

Also advancing was No. 7 seed Marcel Granollers of Spain, who defeated Brazil's Thomaz Bellucci 6-4, 6-2.

Potito Starace beat Alessandro Giannessi 6-2, 7-5 in an all-Italian encounter, while Pablo Andujar of Spain ousted Leonardo Mayer of Argentina, 7-6 (5), 6-3.

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