Novak Djokovic and Rafael Nadal were made to work for their wins on Thursday as the elite seeds struggled into the quarter-finals of the Montreal Masters.
Wimbledon champion Andy Murray failed to advance as he slumped to a shock 6-4, 6-3 loss to Latvia’s Ernests Gulbis.
Top seed and three-time Canadian champion Djokovic dropped the opening set before swinging back into form to earn a 2-6, 6-4, 6-4 win over 66th-ranked Denis Istomin. Nadal subdued Poland’s Jerzy Janowicz 7-6 (8/6), 6-4.
It was a huge day for host Canada, with two players into the quarter-finals for the first time since 1989.
Wild card Vasek Pospisil shocked fifth seed Tomas Berdych 7-5, 2-6, 7-6 (7/5) while 11th seed Milos Raonic blasted former US Open champ Juan Martin del Potro 7-5, 6-4.
Murray, who had won all five previous meetings with the colourful Gulbis, saw his 13-match winning streak snapped. The world number two now heads to Cincinnati for a final chance to tune his hardcourt form ahead of his US Open title defence starting in New York on August 26.
Fourth seeds Leander Paes and Radek Stepanek suffered a second-round defeat at the hands of Andy Murray and Colin Fleming as Indian challenge ended at the Rogers Cup, here.
The Indo-Czech team squandered five break chances as they lost 3-6 3-6 to the British pair in the second round of the $2,887,085 hard court event.
Rohan Bopanna and Andre Begemann have already exited while Sania Mirza and Jie Zheng also