Andy Murray's preparations for the defense of his U.S. Open title hit a wall in Montreal

Wimbledon champion Murray humbled by Gulbis in Montreal

Andy Murray added the Wimbledon crown to his 2012 U.S. Open victory in July.

STORY HIGHLIGHTS

•     Andy Murray is knocked out of the Rogers Cup in Montreal by Latvia's Ernests Gulbis

•     Wimbledon champion is beaten 6-4 6-3 by his opponent who is ranked 38th in world

•     Rafael Nadal wins a hard fought game over Poland's Jerzy Janowicz 7-6 6-4

Andy Murray's preparations for the defense of his U.S. Open title hit a wall in Montreal as he was beaten in the last 16 by Ernests Gulbis.

The world No. 2 was playing in his first tournament since taking the Wimbledon crown in July but sank to a 6-4 6-3 defeat to his Latvian opponent in the Rogers Cup.

It was Gulbis' first ever win over Britain's number one, and ended a 13-match winning streak for the Scot.

Murray now only has one more tournament in which to fine tune his game before returning to Flushing Meadows, the scene of his first ever grand slam victory 12 months ago.