A horse struggles as he is caught from his front legs during the 3rd State Charro Championship in Mexico City on Saturday Jan. 27, 2007. The "Charreria" or Mexican rodeo, is the national sport by presidential decree.(AP Photo/Dario Lopez-Mills)
A young man does a flip during a circus arts class at the Riberao Crianca children's center in Riberao Preto, 300 kilometers (185 miles) northwest of Sao Paulo, Brazil in this Nov. 5, 2002 photo.
People watch a dog fight as the master of a ceremony gestures in Kabul, Afghanistan Friday Dec. 11, 2009. Every Friday, the Muslim day of rest, hundreds of people participate in the dog fights which were banned when the Taliban religious army was in power. (AP Photo/Dario Lopez-Mills)
Men play Buzkashi in Kabul, Afghanistan, Friday, Dec. 11, 2009. Buzkashi, or goat dragging, which is played by two teams of horsemen competing to throw a beheaded 30-kilogram (66 pound) calf, goat or sheep, as the ball, into a scoring circle. The Afghan national sport, outlawed during the Taliban regime, Buzkashi originated centuries ago in Central Asia and is held throughout the northern parts of the country. (AP Photo/Dario Lopez-Mills)
Germany's Michael Schumacher spins out the track during the time trials, Saturday, March 25, 2000 at Sao Paulo track, for Sunday Brazilian Formula One Grand Prix. (AP Photo/Dario Lopez Mills)
Two Yanomami indians play with wooden airplanes in a landing field near their village of Demini in the Amazon jungle, Brazil on Sunday March 22, 1998. (AP Photo/Dario Lopez-Mills)
Rodolfo Silva de Souza, 10, plays in the shallow waters of the Guarapiranga water reservoir in Sao Paulo, Brazil on Friday March 23, 2001. (AP Photo/Dario Lopez-Mills)
A fighter shows his bandaged fists prior to practice at a kickboxing school in Battambang, Cambodia on Nov. 23, 2006. Battambang is the heartland of kickboxing, and many of Cambodia's most serious contenders hail from the province. But sports in Cambodia suffer from a lack of money and training facilities, and Cambodian teams usually get trounced in international competitions.(Photo/Dario Lopez-Mills)
Dogs fight it out as people watch in Kabul, Afghanistan Friday Dec. 11, 2009. Every Friday, the Muslim day of rest, hundreds of people participate in the dog fights which were banned when the Taliban religious army was in power. (AP Photo/Dario Lopez-Mills)
A boy jumps into the Tigris river near the town of Hilla, Iraq on July 23, 2003.(AP Photo/Dario Lopez-Mills)
United States' Melissa Gonzalez falls while fights for the ball with Britain's Nicola White during a women's field hockey match at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. (AP Photo/Dario Lopez-Mills)
In this Saturday May 7, 2011 photo, the "Aliados" dance crew performs at the Mesquit Rodeo nightclub during a dance competition in Matehuala, Mexico. The dance crews were the first to embrace the flashy pointy boot-craze that has swept through the Mexican town of Matehuala, spread to nearby cities and even taken by migrants across the border into the United States. (AP Photo/Dario Lopez-Mills)
In this picture taken Saturday May 7, 2011, Jose Miguel Hernandez Castillo, 20, left, and Luis Alberto Alvarez Gallegos, 16, both belonging to the "Parranderos" dance crew, pose for a photo wearing their pointy boots in Matehuala, Mexico. The flashy pointy boot-craze has swept through the Mexican town of Matehuala, spread to nearby cities and is being taken by migrants across the border into the United States. (AP Photo/Dario Lopez-Mills)
New Zealand's Shea McAleese, second from right, celebrates with teammates after scoring against Germany during a men's field hockey quarter final match at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Sunday, Aug. 14, 2016. (AP Photo/Dario Lopez-Mills)
Men hold back their dog as they arrive at the dog fights in Kabul, Afghanistan Friday Dec. 11, 2009. Every Friday, the Muslim day of rest, hundreds of people participate in the dog fights which were banned when the Taliban religious army was in power. (AP Photo/Dario Lopez-Mills)
Marta Sanchez, left, and Paola Espinoza, of Mexico, dive in the women's 3 meter synchro springboard competition during the Pan American Games in Rio de Janeiro, Saturday July 28, 2007. Sanchez and Espinoza won the gold medal. (AP Photo/Dario Lopez-Mills)
Elizabeth Sloan, of the United States, competes in the uneven bars during the artistic gymnastics team qualifications at the Pan American Games in Guadalajara, Mexico, Monday, Oct. 24, 2011.(AP Photo/Dario Lopez-Mills)
The team of Canada peek from under a curtain as they watch their teammate Rosannagh Maclennan, not shown, get her gold medal after winning the final women's trampoline competition during the Pan American Games in Guadalajara, Mexico, Tuesday, Oct. 18, 2011.(AP Photo/Dario Lopez-Mills)
In this Jan.11, 2017 photo, toys displayed inside a steel box are seen through a magnifying glass at the Mexico Antique Toy Museum in Mexico City. The Mexico Antique Toy Museum is a four story building filled with toys and objects that bring back childhood memories to the visitors that enter this unique monument to hoarding behavior. (AP Photo/Dario Lopez-Mills)
In this Jan. 11, 2017 photo, Mexican "lucha libre" wrestling dolls are displayed in the Lucha Libre room of the Mexico Antique Toy Museum in Mexico City. The museum is struggling, following a congressional decision to stop allocating cultural funds for the collection. The museum has had to cut staff by half and most of its cultural events and workshops have been suspended, but it hopes to raise money through a Kickstarter campaign. (AP Photo/Dario Lopez-Mills)