Montreal: Novak Djokovic, Andy Murray and Rafael Nadal cruised into the quarter-finals with routine victories at the $3,587,490 Canadian Open tennis tournament here.

The top-seeded Djokovic, who captured his third Wimbledon title earlier this summer, was in superb form throughout the afternoon's first match on Court Central on Thursday, dismantling American hopeful Jack Sock 6-2, 6-1 in just 54 minutes, Efe reported.