Seeded trio fall in Argentina

Czech sixth seed Vesely lasted just 92 minutes before succumbing to a 6-4 6-3 defeat to world No 85 Blaz Rola of Slovenia.

Andujar, seeded seventh, put up more a fight but the Spaniard still came out on the losing side against compatriot Nicolas Almagro, who triumphed 6-3 3-6 6-2, while eighth seed Pablo Carreno Busta retired ill while trailing 7-6 (7-2) 3-0 to home hope Federico Delbonis.

Top seed Rafael Nadal is likely to face a partisan atmosphere in his second round clash against Argentine qualifier Facundo Arguello, who defeated Spain’s Albert Montanes 6-3 6-2 in a little over an hour.

Carlos Berlocq, Albert Ramos-Vinolas and Guido Andreozzi were other straight-sets winners in the first round, while Renzo Olivo and Facundo Bagnis were taken to a decider before booking their spots in the last 16.