Brazil's Arthur Zanetti performs on the rings during the gymnastics exhibition gala at the 2016 Summer Olympics in Rio de Janeiro on August 17, 2016. #

Eva de Goede of Netherlands (right) falls while competing against Hannah Kruger of Germany in the Women's Hockey Semifinal Match, Netherlands v Germany. #

Jelle van Gorkom of the Netherlands competes in the men's seeding run at the Olympic BMX Center during the 2016 Summer Olympics on August 17, 2016. #

From left, Jhoanis Portilla of Cuba, Orlando Ortega of Spain, and Deuce Carter of Jamaica compete in the rain in the Men's Preliminary 110m Hurdles Round 1. #

USA's Kerron Clement competes in the Men's 400m Hurdles Final on August 18, 2016. #

A dancer performs during the Gymnastics Rio Gala on Day 12 of the 2016 Rio Olympic Games. #

Jamaica's O'dayne Richards competes in the Men's Shot Put Qualifying Round on August 18, 2016. #

Maartje Paumen Netherlands celebrates during the penalty shootout during the womens semifinal match between the Netherlands and Germany on Day 12 of Rio 2016. #

Bahamas' Shaunae Miller dives across the finish line to win gold ahead of United States' Allyson Felix, right, in the women's 400-meter final on August 15, 2016. #

Jack Laugher of Britain competes in the Men's 3m Springboard Final. #

Daniel Bluman of Colombia riding Apardi competes during the Jumping Individual and Team Qualifier on Day 9 of Rio 2016. #

Omar Hajjami of Morocco competes with Zhao Shuai of China in the Men's Taekwondo 58kg Quarterfinals. #

Bronze winners Yukiko Inui and Risako Mitsui of Japan compete in the Synchronized Swimming Duets Free Routine Final. #

Tiffany Porter of Great Britain (center) competes in the Women's 100m Hurdles Semifinals on Day 12 of Rio 2016. #

Jordan Wilimovsky, of the United States, competes in the men's marathon swimming event at the 2016 Summer Olympics on August 16, 2016. #

Athletes compete in the Men's 3000m Steeplechase Final. #

China's Cao Yuan makes a dive in the men's 3-meter springboard diving final in the Maria Lenk Aquatic Center on August 16, 2016. #

Liam Phillips of Britain, Maris Strombergs of Latvia and David Graf of Switzerland crash during heat 2 of the Men's BMX Quarterfinals. #

Damian Warner of Canada competes in the Men's Decathlon Discus Throw Final. #

Iurii Cheban of Ukraine celebrates after winning gold in the Men's Canoe Single 200m Final at Lagoa Stadium on Day 13 of Rio 2016. #

Photographers take shots of runners in the Men's 5000m Round 1 - Heat 1 on Day 12 of Rio 2016. #

Russia's Darya Klishina competes in the women's long jump qualification at the Olympic stadium in Rio on August 16, 2016. #

Xuerui Li of China lies injured on the court during the Women's Badminton Singles Semifinal Match against Carolina Marin of Spain on Day 13 of Rio 2016. #

Athletes enter the water at the start of the swimming portion of the men's triathlon at Fort Copacabana during Rio 2016. #

Ganna Krasnoshlyk of Ukraine competes in the Women's 10m Platform Diving preliminaries on Day 12 of Rio 2016. #

Laurine van Riessen of Netherlands and Virginie Cueff of France compete in the Women's Cycling Keirin First Round. #

Jaqueline de Carvalho Endres of Brazil reacts after Brazil lost their Women's Volleyball Quarterfinals match. #

Australia's Daniel Bowker and Jordan Wood paddle during the men's kayak double 200m heat in Rio on August 17, 2016. #

Yuliya Levchenko of Ukraine competes in the Women's High Jump Qualifying Round. #

Dorothy Yeats of Canada and Jenny Fransson of Sweden grapple in their 69 kg Women's Freestyle Wrestling Bronze match. #

China's team competes during the synchronized swimming team technical routine final in the Maria Lenk Aquatic Center on August 18, 2016. #