KITZBUEHEL, Austria — Jurgen Melzer of Austria reached his first quarterfinal of the season with a 6-4, 7-5 victory Wednesday over Agustin Calleri of Argentina in the second round of the Austrian Open.

The second-seeded Melzer, ranked at a career-high No. 26, had five aces and converted his fourth match point against Calleri, who won the event in 2006.

"If you let him play, Calleri will put you under a lot of pressure. So I tried to make him run a lot," Melzer said. "I didn't play as well as I can, so I am just glad to be through."

Melzer will take on either seventh-seeded Mikhail Youzhny or Stefan Koubek in the quarterfinals.

Juan Ignacio Chela defeated Ruben Ramirez Hidalgo 6-3, 6-2 and will play Oscar Hernandez, who beat wild card Andreas Beck 7-5, 6-4