Defending champion Rafael Nadal stormed into the French Open quarter-finals on Monday as three Spaniards plus Andy Murray made it through to the last eight in the bottom half of the draw.
Nadal demolished Juan Monaco of Argentina 6-2, 6-0, 6-0.
Countrymen David Ferrer and Nicolas Almagro had earlier gone through comfortably.
Sixth-seeded Ferrer beat countryman Marcel Granollers in straight sets and 12th seed Almagro beat Janko Tipsarevic 6-4, 6-4, 6-4.
Murray joined them with a 4-sets win over Frenchman Richard Gasquet.
Joining them in the last eight, in matches held over from Sunday in the opposing top half of the draw, were Frenchman Jo-Wilfried Tsonga and Juan Martin del Potro of Argentina.
In ladies play: defending champion Li Na crashed out 3 6 6 2 6 0 to Kazakh qualifier Yaroslava Shvedova, the world 142.
She will now face fourth-seeded Wimbledon champion Petra Kvitova who brushed aside unseeded American Varvara Lepchenko 6-2, 6-1.
Maria Sharapova struggled into the quarter-finals, defeating Czech veteran Klara Zakopalova 6-4, 6-7 (5/7), 6-2.
