Rafael Nadal of Spain celebrates match point against Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain hits to Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia serves against Rafael Nadal of Spain (not pictured) in the men?s singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Geoff Burke-USA TODAY Sports

Rafael Nadal of Spain hits to Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Michael Douglas and Catherine Zeta Jones watch the men's singles final between Rafael Nadal of Spain and Daniil Medvedev of Russia on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain hits to Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain reacts after losing a point against Daniil Medvedev of Russia in the fifth set of the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain celebrates match point against Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain (left) greets Daniil Medvedev of Russia (right) after the men's singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Danielle Parhizkaran-USA TODAY Sports

Rafael Nadal of Spain celebrates with the championship trophy after beating Daniil Medvedev of Russia in the men’s singles final on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia returns a shot against Rafael Nadal of Spain in the men's singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Danielle Parhizkaran-USA TODAY Sports

Rafael Nadal of Spain wins the first set against Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia hits to Rafael Nadal of Spain in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain reaches for a backhand against Daniil Medvedev of Russia (R) in the men?s singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Geoff Burke-USA TODAY Sports

Lindsey Vonn and P.K. Subban in attendance at the Rafael Nadal of Spain and Daniil Medvedev of Russia men’s singles final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain celebrates match point against Daniil Medvedev of Russia in the men's singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Danielle Parhizkaran-USA TODAY Sports

Rafael Nadal of Spain, right, and Daniil Medvedev of Russia greet each other before the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia hits a forehand against Rafael Nadal of Spain (not pictured) in the men?s singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Geoff Burke-USA TODAY Sports

Daniil Medvedev of Russia serves against Rafael Nadal of Spain (not pictured) in the men?s singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Geoff Burke-USA TODAY Sports

Daniil Medvedev of Russia hits to Rafael Nadal of Spain in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Movie actor Uma Thurman in attendance at the Rafael Nadal of Spain and Daniil Medvedev of Russia men’s singles final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain serves against Daniil Medvedev of Russia in the men's singles final on day fourteen of the 2019 US Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Danielle Parhizkaran-USA TODAY Sports

Rafael Nadal of Spain greets Daniil Medvedev of Russia after the men’s singles final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Daniil Medvedev of Russia reacts after the men’s final match against Rafael Nadal of Spain on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports

Rafael Nadal of Spain cools off between games agains Daniil Medvedev of Russia in the men’s final match on day fourteen of the 2019 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. Mandatory Credit: Robert Deutsch-USA TODAY Sports