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Mariene De Castro sings as the Olympic torch is extinguished by a waterfall during the Rio 2016 closing ceremony on Sunday, August 21, 2016.

Performers wait to enter the arena during the Rio 2016 closing ceremony on Sunday, August 21, 2016.

A young man looks over his shoulder as men watching a soccer match in a nearby bar ask why he isn't watching the game, while walking with his date during the men's gold medal soccer match between Brazil and Germany during Rio 2016 on Saturday, August 20, 2016. Brazil won the gold medal in a 5-4 shootout.

The barber Adauto gives a sharp razor line like that of the soccer star Gabriel Jesus to Bernardo in the favela Vidigal during the start of the men's gold medal soccer match between Brazil and Germany as part of Rio 2016 on Saturday, August 20, 2016. Brazil won the gold medal in a 5-4 shootout.

Robert Pacheco (left) hugs Tiago Jos聨 after Neymar Jr. scored the 1-0 goal as they watch on television in Bar do Maia do watch the action during the men's gold medal soccer match between Brazil and Germany during Rio 2016 on Saturday, August 20, 2016. Brazil won the gold medal in a 5-4 shootout.

Bernardo stands on the outside of Bar do Maia as he watches the men's gold medal soccer match between Brazil and Germany during Rio 2016 on Saturday, August 20, 2016. Brazil won the gold medal in a 5-4 shootout.

Frank Malinaro of the United States reacts to losing to Frank Chamizo of Italy as time expires during men's 65kg freestyle wrestling on Sunday, August 21, 2016. Chamizo won the match and the bronze.

Mongolian coach Bayaraa Byambarinchin strips down to his underpants in protest as fellow coach Tsogtbayar Tserenbaatar stands by shirtless after their wrestler Ganzorigiin Mandakhnaran thought he had won the bronze medal, but lost upon review to Ikhtiyor Navruzov of Uzbekistan during men's 65kg freestyle wrestling on Sunday, August 21, 2016.

Jordan Burroughs of the United States (foreground) works a shot on on Augusto Midana of Guinea-Bissau during Burrough's 3-1 round of 16 men's freestyle wrestling win on Thursday, August 19, 2016.

Aniuar Geduev of Russia bleeds from his head and his eye as he faces Hassan Yazdani of Iran during the men's 74kg freestyle wrestling gold medal match on Friday, August 19, 2016. Yazdani would capture gold by way of a decision.

Helen Maroulis of the United States reacts to defeating Saori Yoshida of Japan during 53kg women's freestyle wrestling title match on Thursday, August 18, 2016. Maroulis defeated Yoshida 4-1 to capture the gold. Yoshida is the world's most decorated wrestler with three Olympic gold medals and 13 world titles.

Kenzo Hartless rocks a Cristo Redentor shave in his hair outside of Olympic Park on Wednesday, August 17, 2016.

A man rides his bicycle near a graftti-covered wall in the north district neighborhood of Vasco da Gama outside of the Olympic periphery on Wednesday, August 17, 2016.

People commute outside of Casa do Biscoitos in Feira Nordestina outside of the Olympic periphery on Wednesday, August 17, 2016.

Simone Biles of the United States performs during the women's floor exercise final at Rio 2016 on Tuesday, August 16, 2016. Biles won the gold.

Andriy Protsenko of Ukraine reacts to his leap en route to a fourth place finish during high jump at Rio 2016 on Tuesday, August 16, 2016.

Jenny Simpson of the United States competes in the women's 1500-meter final at Rio 2016 on Tuesday, August 16, 2016. Simpson won the bronze medal.

Erik Kynard, Jr. of the United States rocks patriotic socks during the men's high jump at Rio 2016 on Tuesday, August 16, 2016.

Jenny Simpson of the United States celebrates her finish as Laura Muir of Great Britain looks on after the women's 1500-meter final at the Rio Olympics on Tuesday, Aug. 16, 2016. Simpson won the bronze medal.

Omar McLeod of Jamaica reacts to winning the men's 110-meter hurdles final as Dimitri Bascou of France (left) and Pascal Martinot-Lagarde of France finish in third (Bascou) and fourth respectively at Rio 2016 on Tuesday, August 16, 2016.

Simone Biles of the United States prepares for her routine during the women's floor exercise final at Rio 2016 on Tuesday, August 16, 2016. Biles won the gold.

Davit Chakvetadze of Russia celebrates his win over Zhan Beleniuk of Ukraine during their 85kg Greco Roman wrestling title match on Monday, August 15, 2016. Chakvetadze won the gold by way of a 3-1 decision.

Mija聮n L聴pez of Cuba celebrates his win over R玫za Kayaalp of Turkey during their 130kg Greco Roman wrestling title match on Monday, August 15, 2016. L聴pez captured his third straight gold medal by way of a 3-0 win.

Grace Claxton of Puerto Rico prepares for her women's 400-meter hurdles round one race at Rio 2016 on Monday, August 15, 2016.

Boris Berian (center) of the United States runs with the pack as they their first turn on lap two during the men's 800-meter final at Rio 2016 on Monday, August 15, 2016. Brian finished in eighth place.

Emma Coburn clears the barrier on lap 3 during the women's 3000-meter steeplechase on Monday, August 15, 2016. Coburn won the bronze medal.

Emma Coburn of the United States (right) congratulates gold medalist Ruth Jebet of Bahrain before the medals ceremony for the women's 3000-meter steeplechase on Monday, August 15, 2016. Coburn won the bronze medal.

Thousands of people visit Cristo Redentor overlooking Rio de Janeiro on Sunday, August 14, 2016.

People pose for photos while visiting Cristo Redentor overlooking Rio de Janeiro on Sunday, August 14, 2016.

Mason Finley of the United States competes in the men's discus final at Rio 2016 on Saturday, August 13, 2016. Finley qualified sixth overall, but finished 11th after throwing 62.05 meters.

Or Sasson of Israel reacts to defeating Alex Maxell Garcia Mendoza of Cuba for the Bronze during men's over 100kg judo action at Rio 2016 on Friday, August 12, 2016.

Michael Phelps of the United States accepts his gold medal after winning the men's 200-meter individual medley final at Rio 2016 on Thursday, August 11, 2016. The gold marked the fourth time Phelps has won the event.

Simone Biles of the United States performs on the beam during the women's individual all-around at Rio 2016 on Thursday, August 11, 2016. Biles captured gold, teammate Aly Raisman (silver) and Aliya Mustafina (bronze) of Russia.

Aly Raisman of the United States performs on the beam during the women's individual all-around at Rio 2016 on Thursday, August 11, 2016. Raisman finished with the silver behind teammate Simone Biles (gold) and ahead of Russia's Aliya Mustafina (bronze).

Simone Biles of the United States and Aly Raisman stand for the playing of the Star Spangled Banner during the medals ceremony for the women's individual all-around at Rio 2016 on Thursday, August 11, 2016. Biles captured gold, teammate Raisman (silver) and Aliya Mustafina (bronze) of Russia.

Simone Manuel of the United States reacts to tying for the win in the women's 100-meter freestyle final as co-gold medalist medalist Penny Oleksiak of Canada congratulates her at Rio 2016 on Thursday, August 11, 2016.

Fans watch the action during the men's 100-meter freestyle final at Rio 2016 on Wednesday, August 10, 2016. Kyle Chalmers of Australia took gold followed by Pieter Timmers of Belgium (silver) and Nathan Adrian of the United States (bronze).

Great Britain's Molly Renshaw dives into the pool during the women's 200-meter breaststroke semifinal at Rio 2016 on Wednesday, August 10, 2016.

Katie Ledecky of the United States is greeted by teammates (from left) Allison Schmitt, Madeline Dirado and Leah Smith after anchoring them to a come-from-behind win during the women's 4x 200-meter freestyle relay final at Rio 2016 on Wednesday, August 10, 2016. The United States edged out Australia (silver) and Canada (bronze). Missy Franklin was not added to the foursome after she struggled during an individual freestyle semifinal.

Missy Franklin checks her time after a women's 200-meter backstroke eliminator heat at Rio 2016 on Wednesday, Aug. 10, 2016.

The men's 200-meter backstroke semifinal at Rio 2016 on Wednesday, August 10, 2016.

Katie Ledecky of the United States is greeted by teammates (from left) Allison Schmitt, Madeline Dirado and Leah Smith after anchoring them to a come-from-behind win during the women's 4x 200-meter freestyle relay final at Rio 2016 on Wednesday, August 10, 2016. The United States edged out Australia (silver) and Canada (bronze). Missy Franklin was not added to the foursome after she struggled during an individual freestyle semifinal.

Michael Phelps en route to winning the men's 100-meter butterfly during Rio 2016 action on Tuesday, August 9, 2016. The gold is the 20th for Phelps in his Olympic career.

Katie Ledecky of the United States reacts to winning the women's 200-meter during Rio 2016 action on Tuesday, August 9, 2016.

Kristin Armstrong hugs her son Lucas Armstrong Savola, 5, after she won the gold medal in the women's cycling road individual time trial at Rio 2016 on Wednesday, August 10, 2016.

Madison Kocian of the United States competes on uneven bars during the women's team gymnastics final on Tuesday, August 9, 2016. The United States women won the event.

Alexandra Raisman of the United States completes her floor routine during the women's team gymnastics final on Tuesday, August 9, 2016. The United States women won the event.

Simone Biles of the United State prepares for the vault during the women's team gymnastics final on Tuesday, August 9, 2016. The United States women won the event.

From left, Simone Biles, Gabrielle Douglas, Lauren Hernandez, Madison Kocian and Alexandra Raisman celebrate their gold after the women's team gymnastics final on Tuesday, August 9, 2016. The United States women won the event.

Anna Ustykuhina of Russia defends a shot by Keesja Gofers of Australia during Australia's 14-4 Group A preliminary round win on Tuesday, August 9, 2016.

Fans cheer late in the action between Australia and Russia during Australia's 14-4 Group A preliminary round win on Tuesday, August 9, 2016.

Missy Franklin reacts after the women's 200-meter freestyle semifinal on Monday, August 8, 2016. Franklin finished eighth in her heat and did not qualify for the final.

Lilly King of the United States celebrates her win in the women's 100-meter breaststroke on Monday, August 8, 2016.

Dannell Leyva of the United States performed on the pommel horse during the men's team gymnastics final at Rio 2016 on Monday, August 8, 2016.

Dannell Leyva of the United States performs on the parallel bars during the men's team gymnastics final at Rio 2016 on Monday, August 8, 2016.

Samuel Mikulak of the United States competes on vault during the men's team gymnastics final at Rio 2016 on Monday, August 8, 2016.

Li Ping of Qatar blows on the ball while playing Dimitrij Ovtcharov of Germany during round 3 table tennis action at Rio 2016 on Monday, August 8, 2016.

Dimitrij Ovtcharov of Germany serves while playing Li Ping of Qatar during round 3 table tennis action at Rio 2016 on Monday, August 8, 2016.

Long Qingquan of China celebrates upon capturing gold on his final lift during men's 56kg weightlifting final at Rio 2016 on Sunday, August 7, 2016.

Laura Gomez of Spain (right) and Gulbadam Babamuratova of Turkmenistan go airborne during judo action at Rio 2016 on Sunday, August 7, 2016.

A pack of riders make a climb during the men's road race at Rio 2016 on Saturday, August 6, 2016.

Riders race adjacent to the Atlantic Ocean during the men's road race at Rio 2016 on Saturday, August 6, 2016.

Carlie Lloyd (10) of the United States heads in a 1-0 goal as she and teammate Allie Long (3) go head to head with Alie Riley (7) of New Zealand and Rebekah Stott (6) during the first half of their first round Rio 2016 group G match.

Becky Sauerbrunn (4) of the United States, Allie Long (3), Mallory Pugh (2), Hope Solo (1) and Carlie Lloyd (10) stand for their country's national anthem before the first half of their first round Rio 2016 group G match against New Zealand.

A view of Rio de Janeiro on a plane en route to Belo Horizonte on Wednesday, August 3, 2016.

Swimmer Michael Phelps leads the United States into the arena during the Rio 2016 Opening Ceremony on Friday, August 5, 2016.