
Fourth-seeded Nikolay Davydenko cruised into the third round of the Hamburg Masters by beating Ivan Ljubicic 6-4, 6-1 Tuesday, and two more players retired because of injuries.
Fifth-seeded David Ferrer also breezed into the third round, beating Ivo Minar 6-3, 6-3.
Robredo, the 2006 champion who lost in the first round last year, outlasted Philipp Kohlschreiber 2-6, 7-6 5, 6-3. In another second-round match, Fernando Verdasco defeated Michael Llodra 6-2, 6-0.
In first-round action, 11th-seeded Carlos Moya rallied to beat Julien Benneteau 3-6, 6-4, 7-6 7.