Britain's Siobhan-Marie O'Connor poses with her silver medal on the podium of the Women's 200m Individual Medley Final during the swimming event at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium in Rio de Janeiro on August 9, 2016. / AFP / Odd Andersen (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 09: Silver medalists Daniel Wallace, James Guy, Stephen Milne, and Duncan Scott of Great Britain pose on the podium during the medal presentation for the Men's 4 x 200m Freestyle Relay Final on Day 4 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 9, 2016 in Rio de Janeiro, Brazil. (Photo by Adam Pretty/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 09: Gold medalist Michael Phelps of the United States celebrates during the medal presentation for the Men's 4 x 200m Freestyle Relay Final on Day 4 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 9, 2016 in Rio de Janeiro, Brazil. (Photo by David Ramos/Getty Images)
Serena Williams of the U.S. during her match against Bethanie Mattek-Sands at the U.S. Open tennis tournament in New York, September 4, 2015. (Photo by Gary Hershorn/Corbis via Getty Images)
A general view shows green water in the pool of the diving event before the Women's Synchronised 10m Platform Final at the Rio 2016 Olympic Games at the Maria Lenk Aquatics Stadium in Rio de Janeiro on August 9, 2016. / AFP / Odd ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
