 He scored eight goals in 15 matches with Pachuca.After his impressive display in the 2009 CONCACAF Gold Cup, Al Wasl FC of Dubai was able to secure Blas Pérez services to play in the UAE League based on Al Wasl's new coach Alexandre Guimarães recommendation.He stayed there only for the first half of the 2009–10 season before moving back to Mexico to play for San Luis.