Defending champion Novak Djokovic had little trouble advancing to the quarterfinals at Wimbledon, beating fellow Serb Viktor Troicki 6-3, 6-1, 6-3 on Monday underneath the roof on Centre Court.

While rain washed out late matches on all other courts at the All England Club, Djokovic dispatched Troicki in just 90 minutes by breaking his friend six times. Djokovic won 16 of his 19 approaches to the net and hit 31 winners overall, compared with 15 for Troicki.

The top-ranked Djokovic will next face the winner of the meeting between Richard Gasquet and Florian Mayer, whose match was among those suspended for the day because of persistent rain at the All England Club.

Troicki has now lost his last 12 matches against Djokovic.