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OTTAWA, ON - FEBRUARY 4: Birgitte, Duchess of Gloucester attends the doubles match on day two of the Davis Cup World Group match between Great Britain and Canada at TD Place Arena on February 4, 2017 in Ottawa, Ontario, Canada. (Photo by Andre Ringuette/Getty Images for LTA)

OTTAWA, ON - FEBRUARY 4: Birgitte, Duchess of Gloucester attends the doubles match on day two of the Davis Cup World Group match between Great Britain and Canada at TD Place Arena on February 4, 2017 in Ottawa, Ontario, Canada.  (Photo by Andre Ringuette/Getty Images for LTA)

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OTTAWA, ON - FEBRUARY 3: Birgitte, Duchess of Gloucester and David Rawlinson talk as they attend the singles matches during day one of the Davis Cup World Group tie between Great Britain and Canada at TD Place Arena on February 3, 2017 in Ottawa, Ontario, Canada. (Photo by Andre Ringuette/Getty Images for LTA)

OTTAWA, ON - FEBRUARY 3: Birgitte, Duchess of Gloucester and David Rawlinson talk as they attend the singles matches during day one of the Davis Cup World Group tie between Great Britain and Canada at TD Place Arena on February 3, 2017 in Ottawa, Ontario, Canada.  (Photo by Andre Ringuette/Getty Images for LTA)

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OTTAWA, ON - FEBRUARY 3: Birgitte, Duchess of Gloucester attends the singles matches during day one of the Davis Cup World Group tie between Great Britain and Canada at TD Place Arena on February 3, 2017 in Ottawa, Ontario, Canada. (Photo by Andre Ringuette/Getty Images for LTA)

OTTAWA, ON - FEBRUARY 3: Birgitte, Duchess of Gloucester attends the singles matches during day one of the Davis Cup World Group tie between Great Britain and Canada at TD Place Arena on February 3, 2017 in Ottawa, Ontario, Canada.  (Photo by Andre Ringuette/Getty Images for LTA)

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OTTAWA, ON - FEBRUARY 4: Birgitte, Duchess of Gloucester attends the doubles match on day two of the Davis Cup World Group match between Great Britain and Canada at TD Place Arena on February 4, 2017 in Ottawa, Ontario, Canada. (Photo by Andre Ringuette/Getty Images for LTA)

OTTAWA, ON - FEBRUARY 4: Birgitte, Duchess of Gloucester attends the doubles match on day two of the Davis Cup World Group match between Great Britain and Canada at TD Place Arena on February 4, 2017 in Ottawa, Ontario, Canada.  (Photo by Andre Ringuette/Getty Images for LTA)

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OTTAWA, ON - FEBRUARY 4: Birgitte, Duchess of Gloucester attends the doubles match on day two of the Davis Cup World Group match between Great Britain and Canada at TD Place Arena on February 4, 2017 in Ottawa, Ontario, Canada. (Photo by Andre Ringuette/Getty Images for LTA)

OTTAWA, ON - FEBRUARY 4: Birgitte, Duchess of Gloucester attends the doubles match on day two of the Davis Cup World Group match between Great Britain and Canada at TD Place Arena on February 4, 2017 in Ottawa, Ontario, Canada.  (Photo by Andre Ringuette/Getty Images for LTA)