Vina del Mar, Chile (4E Sports) – World No. 93 Guillaume Rufin stunned second seed and 15th-ranked Juan Monaco, 7-6 (3), 6-4, Wednesday to book a spot in the quarterfinal round of the VTR Open.
The 22-year-old Rufin hit six aces and won two of three break points to put his head-to-head record against Monaco to 1-1.
Rufin also avenged his four-set defeat to the 28-year-old Monaco in the first-round clash of the French Open last year.
In the quarterfinal, Rufin will meet the winner of the Carlos Berlocq-Santiago Giraldo showdown.
In other matches, fifth seed Albert Ramos of Spain beat Rogerio Dutra Silva, 6-4, 6-1 while seventh seed Daniel Gimeno-Traver downed Joao Sousa in three sets, 6-4, 4-6, 6-1.
In Croatia, sixth seed and 2007 champion Marcos Baghdatis improved to 9-1 lifetime at the PBZ Zagreb Indoors after eliminating Tobias Kamke of Germany 6-7(6), 6-2, 6-4 in just over two hours.
“Basically, I was a bit surprised the way Tobias played today,” said Baghdatis, who will play Blaz Kavcic in the second round. Kavcic sealed a showdown with Baghdatis after beating Aljaz Bedene, 6-7(5), 6-3, 6-3.
Croatia’s Ivan Dodig converted two of his nine break point opportunities to beat Benjamin Becker of Germany 6-2, 7-6(3) in 82 minutes and advance to the next round against Ivo Karlovic.
Robin Haase struck 15 aces past local wild card Antonio Veic for a 2-6, 6-3, 6-3 victory while Italian Flavio Cipolla earned the win after eighth seed Lukas Lacko retired due to a lower back injury.
Meanwhile, Jarkko Nieminen knocked out fifth seed Nikolay Davydenko 6-3, 7-6(8) in the second round of the Open Sud de France for his first victory over the Russian in nearly 10 years.
Seventh seed Viktor Troicki, who has finished in the Top 40 of the Emirates ATP Rankings for the past four years, did not face a break point in a 6-4, 7-5 first-round win over 18-year-old wild card Lucas Pouille.
In other first-round action, sixth-seeded Frenchman Julien Benneteau was leading 6-3, 4-2 when his Romanian opponent, Adrian Ungur retired with a leg injury.