Andy Murray has withdrawn from the Rogers Cup as he has yet to recover from the hip injury
which hampered his Wimbledon campaign.
The 30-year-old Scot said he was "disappointed" to miss next week's tournament in Montreal
and Toronto, but added: "I am doing everything I can to return as quickly as possible."
Murray could lose his number one ranking to Rafael Nadal next week if reaching the semi-finals of this tournament.
Nadal and Federer will now be the top two seeds in the men's draw, with Stan Wawrinka also absent.
bbc news
Andy Murray withdraws from Rogers Cup
which hampered his Wimbledon campaign.
The 30-year-old Scot said he was "disappointed" to miss next week's tournament in Montreal
and Toronto, but added: "I am doing everything I can to return as quickly as possible."
Murray could lose his number one ranking to Rafael Nadal next week if reaching the semi-finals of this tournament.
Nadal and Federer will now be the top two seeds in the men's draw, with Stan Wawrinka also absent.
bbc news