STOCKHOLM - Two-time former champion Tommy Robredo was ousted from the Swedish Open by Spanish compatriot Albert Ramos in straight sets on Wednesday.
Fourth-seeded Robredo couldn't even reach a break point against Ramos, who won 6-3, 6-4 to reach the quarterfinals.
Bulgaria's Grigor Dimitrov rallied to beat Italy's Filippo Volandri 2-6, 6-1, 6-4. Dimitrov also recovered from a set down in his first-round win against Sweden's Elias Ymer.
Argentines Juan Monaco and Carlos Berlocq earned slots in the quarterfinals after beating Henri Laaksonen and Blaz Kavcic, respectively.
Top seeds Tomas Berdych and Nicolas Almagro enter the tournament on Thursday.