Montreal - Ernests Gulbis handed Wimbledon champion Andy Murray a 6-4, 6-3 defeat in the Montreal Masters third round on Thursday.
The win was the first in six meetings with the world number two for the Latvian and ended a 13-match winning streak for Murray.
Murray now heads to Cincinnati next week for a final chance to tune his hardcourt form for his US Open title defence starting in New York on August 26.
Gulbis went through in less than 90 minutes with three breaks of Murray, who has been champion in Canada on two occasions.