Nicolas Almagro of Spain advanced to the second round of the clay-court Argentina Open after defeating countryman Albert Montanes 6-3, 6-3. Almagro won this tournament in 2011, but has not won an ATP singles tournament in the last three seasons. In another first-round match Monday between unseeded players, Santiago Giraldo of Colombia defeated Inigo Cervantes of Spain 6-1, 7-5. Diego Schwartzman of Argentina beat Alexandr Dolgopolov of Ukraine 5-7, 6-4, 6-3, while Leonardo Mayer of Argentina downed countryman Guido Pella 2-6, 6-3, 6-3. Top-seeded Rafael Nadal has a bye into the second round, as does Spanish countryman and second-ranked David Ferrer. Jo-Wilfried Tsonga, ranked third, and fourth-seeded John Isner, also have first-round byes. Nadal to play at Queen's Spaniard Rafael Nadal will sharpen his grasscourt game at London's Queen's Club ahead of Wimbledon in June, organizers of the Aegon Championships said Tuesday. The 14-time Grand Slam champion, ranked fifth in the world, has fond memories of Queen's, having won the title there in 2008 before going on to beat Roger Federer a few weeks later and claim his first Wimbledon crown. Defending champion Andy Murray is also confirmed for the traditional warm-up event which starts on June 13. "Holding that trophy again would be amazing although I am well aware of the difficulties because the tournament always has so many good players," Nadal said in a statement. Before his thoughts turn to grass, however, Nadal will seek to return to the kind of form that once made him dominate men's tennis, particularly on clay. He suffered a disappointing first-round exit at the Australian Open and with his 30th birthday looming his aura is in danger of fading.