Roger Federer has not played since losing the Wimbledon final on July 12
The Swiss star is preparing to challenge for the US Open next month
Federer admits he is disappointed to miss the tournament in Montreal
Roger Federer has pulled out of next month's Rogers Cup hard-court tournament.
In a statement released by Tennis Canada, Federer said: 'I am disappointed that I won't be playing in Montreal because it's a tournament and a city that I really enjoy and has incredible fans.
'I hope to be back in the future.''
Federer, the winner of a record 17 major championships, has not competed since losing to Novak Djokovic in the Wimbledon final on July 12.
'We are obviously disappointed to have Roger withdraw as it is always a privilege to watch him play,' tournament director Eugene Lapierre said in a statement. '
'We also understand his decision because, above all, he has always been very loyal to our event and we would love to see him play tennis for many more years to come.'
Federer, who turns 34 on August 8, won the Rogers Cup twice, in 2004 and 2006, and he was the runner-up a year ago.
Play begins on August 10 in Montreal. Federer will be replaced in the main draw by Jerzy Janowicz, a semi-finalist at Wimbledon in 2013.