Seeds tumble in day of upsets in Brazil
The seeds tumbled in the first round of the Brasil Open on Tuesday as Albert Ramos, Paolo Lorenzi, Nicolas Almagro and Pablo Andujar all bowed out.
Ramos was the highest-ranked casualty to be dumped out in Sao Paulo, but there was no sign of things to come when he whitewashed Pablo Carreno-Busta in the opening set.
However, his fellow Spaniard fought back brilliantly to claim a 0-6 6-4 7-6 (7-2) victory over the fifth in a match lasting two hours and 12 minutes.
Carreno-Busta twice broke for the lead in the decider only for Ramos to hit back each time, but it proved in vain as the former dominated the tie-break.
Italian sixth seed Lorenzi - the champion in 2014 - was the overwhelming favourite against qualifier Blaz Rola with 108 places separating them in the rankings, but the underdog prevailed 7-6 (7-3) 3-6 7-6 (7-5).
Seventh seed Almagro also crashed out, eliminated by wildcard Thiago Monteiro 6-3 7-5.
Andujar, seeded eighth, raced through the first set of his contest against Gastao Elias 6-1, but after losing the second 6-4 he retired with a seeming left arm injury.
Facundo Bagnis also pulled off a mini upset in a 6-4 6-1 beating of Paul Henri-Mathieu, Dusan Lajovic was a 6-2 6-2 victor over 2015 runner-up Luca Vanni, and Inigo Cervantes defeated Spanish compatriot Marcel Granollers 6-3 6-4.
Diego Schwartzman was leading 6-4 4-2 in his contest against Horacio Zeballos when his opponent retired, while Santiago Giraldo was a 6-2 6-2 victor against Marco Cecchinato.