Top seed Nikolay Davydenko eased into the quarter-finals of the Studena Croatia Open in Umag with a 6-1 6-2 victory over Frenchman Stephane Robert.
Davydenko, who has struggled for form since his comeback from a serious wrist injury, needed just 53 minutes to seal his place in the last eight.
Former world number one and fourth seed Juan Carlos Ferrero came from a set down to defeat Uruguay’s Pablo Cuevas 4-6 6-4 6-4.
“I expected a tough match,” Ferrero said.
“I beat him in three straight sets in May at Roland Garros, but it was tough. So I was ready today.”
And there were also wins for sixth-seeded Ukrainian Alexandr Dolgopolov, who beat Croatian wild card Franco Skugor 7-6 (7-1) 6-3, and Argentina’s Juan Ignacio Chela who beat qualifier Simone Bolelli 7-6 (7-5) 6-7 (4-7) 6-1.
