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RIO DE JANEIRO, BRAZIL - AUGUST 7, 2016: Adam Peaty of the United Kingdom poses with his gold medal at a victory ceremony for the men's 100m breaststroke event at the Rio 2016 Summer Olympic Games, at the Olympic Aquatics Stadium. Adam Peaty has set a new world record of 57.13. Stanislav Krasilnikov/TASS (Photo by Stanislav Krasilnikov\TASS via Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 7, 2016: Adam Peaty of the United Kingdom poses with his gold medal at a victory ceremony for the men's 100m breaststroke event at the Rio 2016 Summer Olympic Games, at the Olympic Aquatics Stadium. Adam Peaty has set a new world record of 57.13. Stanislav Krasilnikov/TASS (Photo by Stanislav Krasilnikov\TASS via Getty Images)

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RIO DE JANEIRO, BRAZIL - AUGUST 07: Silver medalist Jazz Carlin of Great Britain poses during the medal ceremony for the Women's 400m Freestyle Final on Day 2 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 7, 2016 in Rio de Janeiro, Brazil. (Photo by Julian Finney/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 07:  Silver medalist Jazz Carlin of Great Britain poses during the medal ceremony for the Women's 400m Freestyle Final on Day 2 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 7, 2016 in Rio de Janeiro, Brazil.  (Photo by Julian Finney/Getty Images)

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Britain's Andy Murray returns the ball to Serbia's Viktor Troicki during their men's first round singles tennis match at the Olympic Tennis Centre of the Rio 2016 Olympic Games in Rio de Janeiro on August 7, 2016. / AFP / Roberto SCHMIDT (Photo credit should read ROBERTO SCHMIDT/AFP via Getty Images)

Britain's Andy Murray returns the ball to Serbia's Viktor Troicki during their men's first round singles tennis match at the Olympic Tennis Centre of the Rio 2016 Olympic Games in Rio de Janeiro on August 7, 2016. / AFP / Roberto SCHMIDT        (Photo credit should read ROBERTO SCHMIDT/AFP via Getty Images)

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TOPSHOT - USA's Serena Williams returns the ball to Australia's Daria Gavrilova during their women's first round singles tennis match at the Olympic Tennis Centre of the Rio 2016 Olympic Games in Rio de Janeiro on August 7, 2016. / AFP / Roberto SCHMIDT (Photo credit should read ROBERTO SCHMIDT/AFP via Getty Images)

TOPSHOT - USA's Serena Williams returns the ball to Australia's Daria Gavrilova during their women's first round singles tennis match at the Olympic Tennis Centre of the Rio 2016 Olympic Games in Rio de Janeiro on August 7, 2016. / AFP / Roberto SCHMIDT        (Photo credit should read ROBERTO SCHMIDT/AFP via Getty Images)

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RIO DE JANEIRO, BRAZIL - AUGUST 07: Majlinda Kelmendi of Kosovo (blue) shows her emotions as she celebrates winning the gold medal against Odette Giuffrida of Italy during the Women’s -52kg gold medal final on Day 2 of the Rio 2016 Olympic Games at Carioca Arena 2 on August 7, 2016 in Rio de Janeiro, Brazil. (Photo by Laurence Griffiths/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 07:  Majlinda Kelmendi of Kosovo (blue) shows her emotions as she celebrates winning the gold medal against Odette Giuffrida of Italy during the Women’s -52kg gold medal final on Day 2 of the Rio 2016 Olympic Games at Carioca Arena 2 on August 7, 2016 in Rio de Janeiro, Brazil.  (Photo by Laurence Griffiths/Getty Images)