Kyle Edmund(left) of Team Great Britain warms up before the Davis Cup first round against Team Canada at TD Place in Ottawa, Ontario, February 3, 2017. (Lars Hagberg/AFP/Getty Images)
Denis Shapovalov of Canada serves during the first set against Daniel Evans of Great Britain in Davis Cup first round against Canada and Great Britain at TD Place in Ottawa, Ontario, February 3, 2017. (Lars Hagberg/AFP/Getty Images)
Canada's Vasek Pospisil reacts after winning a point against Kyle Edmund of Team Great Britain during the Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 3, 2017. (Lars Hagberg/AFP/Getty Images)
Kyle Edmund of Great Britain reacts after winning the first set against Denis Shapovalov of Canada on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Canada's Vasek Pospisil serves against against Kyle Edmund of Team Great Britain during the Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 3, 2017. (Lars Hagberg/AFP/Getty Images)
Canada's Vasek Pospisil hits a serve against against Kyle Edmund of Team Great Britain in the second set during the Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 3, 2017. (Lars Hagberg/AFP/Getty Images)
Canada's Vasek Pospisil runs after a return from Kyle Edmund of Team Great Britain during the Davis Cup first round between Team Canada and Great Britain at TD Place in Ottawa, Ontario, February 3, 2017. (Lars Hagberg/AFP/Getty Images)
Daniel Nestor of Canada serves during the double game of the second day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 4, 2017. (Lars Hagberg/AFP/Getty Images)
Jamie Murray of Great Britain returns a ball during the double game against Daniel Nestor and Vasek Pospisil of Canada during the second day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, (Lars Hagberg/AFP/Getty Images)
Vasek Pospisil of Canada reacts after winning a ball against Jamie Murray and Dominic Inglot of Great Britain during the double game on the second day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Jamie Murray(blue shirt) of Great Britain returns a ball during the double game against Daniel Nestor and Vasek Pospisil of Canada during the second day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa (Lars Hagberg/AFP/Getty Images)
Daniel Evans of Great Britain hits a ball in the second set against Vasek Pospisil of Canada the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Vasek Pospisil of Canada hits a return against Daniel Evans of Great Britain during second set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Daniel Evans of Great Britain reacts after losing a point Vasek Pospisil of Canada during the fourth set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. February 5, 2017.
Vasek Pospisil of Canada reacts after winning a break point against Daniel Evans of Great Britain during the end of the fourth set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Daniel Evans of Great Britain flips his racket after losing a point against Vasek Pospisil of Canada during the third set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Vasek Pospisil of Canada reacts after winning a point against Daniel Evans of Great Britain in the fourth set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Denis Shapovalov of Canada reaches for a ball against Kyle Edmund of Great Britain during the first set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Denis Shapovalov of Canada reacts after winning a ball against Kyle Edmund of Great Britain during the third set on the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Head umpire Arnaud Gabas sits with an ice pack on his eye after Denis Shapovalov of Canada accidentally hit him with a tennis ball during the third set day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Head umpire Arnaud Gabas sits with an ice pack on his eye after Denis Shapovalov of Canada accidentally hit him with a tennis ball during the third set day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)
Denis Shapovalov of Canada reacts after accidentally hitting the head umpire Arnaud Gabas from France during third set action against Kyle Edmund of Great Britain the third day of Davis Cup first round between Canada and Great Britain at TD Place in Ottawa, Ontario, February 5, 2017. (Lars Hagberg/AFP/Getty Images)