Argentina's Juan Monaco advanced to the quarterfinals of the German Open in Hamburg with a 6-3, 2-6, 6-2 victory Thursday over Frenchman Benoit Paire.

Monaco, the No. 5 seed, had a letdown in the second set against the talented 24-year-old but bounced back strong in the third to stay alive in this clay-court event.

Next up for the Argentine will be Spain's Nicolas Almagro, who topped countryman Guillermo Garcia Lopez 6-2, 6-3.

Also Thursday, Spain's Fernando Verdasco continued his strong recent run of form by defeating big-serving Pole Jerzy Janowicz 7-5, 4-0, ret., to advance to the quarterfinals.

Verdasco reached the quarterfinals of this year's Wimbledon and lost last week in the final of the Swedish Open in Bastad.

Germany's Tommy Haas, the No. 2 seed and home-crowd favorite, also reached the tournament's final eight with a 6-2, 6-4 win Thursday over Argentina's Carlos Berlocq, who was fresh off winning the first title of his career last week in Bastad.

Top-seeded Roger Federer, a four-time winner of this event, defeated German Daniel Brands 3-6, 6-3, 6-2 Wednesday in his opening match, his first since switching to a new, bigger racquet.

The 31-year-old Federer made the change after a shocking second-round defeat at Wimbledon that dropped him to No. 5 in the rankings, his lowest spot in a decade. EFE