World number two Roger Federer has withdrawn from next month's Rogers Cup in Montreal, though he gave no reason for his decision in a statement released by organisers on Wednesday.
The three-times champion, who gave birth last September and lost in the Wimbledon final 10 days ago, has not competed in Montreal since her run to the semi-finals in 2014 and last played the Rogers Cup in Toronto the following year.
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The returning Scot also announced his withdrawal from next week's Rogers Cup in Toronto.