Feb 26 (Infostrada Sports) - Results from the Acapulco International Men's Singles Round 1 matches on Monday Leonardo Mayer (Argentina) beat Miguel Angel Reyes (Mexico) 6-0 7-6(6) Santiago Giraldo (Colombia) beat Ruben Ramirez Hidalgo (Spain) 4-6 6-4 6-4 Joao Sousa (Portugal) beat 5-Jurgen Melzer (Austria) 6-4 6-3 Pablo Andujar (Spain) beat Dusan Lajovic (Serbia) 3-6 7-5 6-2 Martin Alund (Argentina) beat Daniel Garza (Mexico) 7-6(7) 7-5