Boards stand lined up at the Rocinha Surf Association, ASR, headquarters at Rocinha slum in Rio de Janeiro, Brazil, Thursday, July 2, 2015. ASR has given free lessons to over 2,000 children from Rio's shantytowns in the hopes of keeping the boys, who are mostly in their early teens and a few girls occupied by the sport and off the streets. (Photo by Felipe Dana/AP Photo)

Chinese female weightlifter Xiang Yanmei, who competes in the 69 kg weightclass, rests with a weight on her stomach as she checks her phone during a training session in preparation for the Rio Olympics at the Training Center of General Administration of Sports in China on July 20, 2016 in Beijing, China. Xiang Yanmei won the World Championships in 2013 and 2015. (Photo by Kevin Frayer/Getty Images)

A BASE jumper is pictured against the skyline shrouded in a thick haze during the Kuala Lumpur Tower International Jump in Kuala Lumpur, Malaysia, 02 October 2015. More than 100 BASE jumpers take part in this extreme sport event, which enters its 15th year. The haze hovering over Malaysia is caused by the ongoing plantation and forest fires in the nearby Indonesian provinces of Sumatra and Kalimantan. (Photo by Fazry Ismail/EPA)

Talbot Lago T26 Grand sport SWB Saoutichik is displayed for auction during the Retromobile show in Paris, Tuesday, February 3, 2015. 60 rusting motors, which include a vintage Ferrari California Spider, a Bugatti and a very rare Maserati, were found gathering dust and hidden under piles of newspapers in garages and outbuildings at a property in France. The cars were collected from the 1950s to the 1970s by entrepreneur Roger Baillon, who dreamt of restoring them to their former glory and displaying them in a museum, but, his plans were dashed as his business struggled, forcing the sale of about 50 vehicles, to be auctioned off on Feb. 6. (Photo by Jacques Brinon/AP Photo)

Alex “Torreto” Vellios, a 26-year old barber sports his tattoo of an open razor as he holds a real razor while preparing for his first customer of the day at his Torreto barber shop in Frankfurt, January 6, 2015. Inspired by a childhood trip to the barbers with his grandfather in Greece, Vellios, a formally trained hairdresser and self-taught barber, fulfilled his dream of opening his own gentleman's barber shop five months ago and has turned it into a successful male grooming and shaving business with customers now waiting up to three to four weeks for an appointment to see him. (Photo by Kai Pfaffenbach/Reuters)

An Israeli woman scrambles through the mud and under barbed wire at the competition of the Legion Run in the Menara Cliffs area of Kiryat Shmona, in northern Israel, near the Lebanon border 14 October 2016. Hundreds of participants ran five kilometers cross country in steep terrain and then navigated various obstacle courses including steep inclines and mud holes. It is the first time this non-competitive but supportive sporting event is held in Israel. (Photo by Jim Hollander/EPA)

A young YPJ recruit (in pink) arrives to the training base for her first day in training near Derek City, Syria. The YPJ schedule is demanding and requires discipline – new soldiers in training get about 6 hours of sleep a night and wake up at 4 AM to begin exercising; afterwards, their day consists of a full schedule of drills and classroom lessons. Before joining the YPJ many of the girls had never participated in physical activity or sports before. (Photo by Erin Trieb/NBC News)

Burger King employee Rumi Sekine shows the Kuro Diamond burger, right, and the Kuro Pearl burger at its Shibuya restaurant in Tokyo Tuesday, September 16, 2014. The international hamburger chain in Japan will launch the two new “kuro burger”, or “black burger” menus that sport buns, cheese and sauce all in black color, starting on Friday, Sept. 19, for a limited period. The buns and cheese are darkened with bamboo charcoal while the beef patties made with black-pepper are topped with the garlic sauce using squid ink. (Photo by Koji Sasahara/AP Photo)