The defending champion needed just 90 minutes to defeat fellow Serb and childhood friend Viktor Troicki 6-3, 6-1, 6-3 on Monday to reach the quarter-finals.

He can now rest until Wednesday while Germany's number 31 seed Florian Mayer and French 18th seed Richard Gasquet, one of whom will tackle the top seed in the last eight, were toiling in the rain out on Court Three.