Rafael Nadal, Roger Federer win opening encounters at Rogers Cup

Roger Federer of Switzerland keeps his eyes on the ball as he faces Peter Polansky of Canada at the Rogers Cup tennis tournament in Montreal. | AP

Peter Polansky of Canada returns to Roger Federer of Switzerland at the Rogers Cup tennis tournament in Montreal. | AP

Roger Federer of Switzerland returns to Peter Polansky of Canada at the Rogers Cup tennis tournament in Montreal. | AP

Switzerland's Roger Federer, right, shakes hands with Canada's Peter Polansky after their match at the Rogers Cup tennis tournament in Montreal. | AP

Switzerland's Roger Federer celebrates his win over Canada's Peter Polansky at the Rogers Cup tennis tournament in Montreal. | AP

Rafael Nadal of Spain returns to Borna Coric of Croatia during the Rogers Cup men’s tennis tournament Montreal. | AP

Borna Coric of Croatia serves to Rafael Nadal of Spain during the Rogers Cup men’s tennis tournament in Montreal. | AP

Rafael Nadal of Spain serves to Borna Coric of Croatia during the Rogers Cup men’s tennis tournament in Montreal. | AP

Borna Coric of Croatia reacts during his match against Rafael Nadal of Spain during the Rogers Cup men’s tennis tournament in Montreal. | AP

Rafael Nadal of Spain celebrates his victory over Borna Coric of Croatia during the Rogers Cup men’s tennis tournament in Montreal. | AP

Rafael Nadal, of Spain, celebrates his victory over Borna Coric, of Croatia, at the Rogers Cup tennis tournament in Montreal. | AP