riders

Peter Sagan of Slovakia, wearing the best sprinter's green jersey, left, rides in the pack during the seventeenth stage of the Tour de France cycling race over 161 kilometers (100 miles) with start in Digne-les-Bains and finish in Pra Loup, France, Wednesday, July 22, 2015

Christophe Ena/AP

Peter Sagan of Slovakia, wearing the best sprinter’s green jersey, rides in the pack during the 17th stage of the Tour de France cycling race over 161km (100 miles) with the start in Digne-les-Bains and finish in Pra Loup, France, on Wednesday

The pack of riders cycle during the 11th stage of the Tour de France cycling race...The pack of riders cycle during the 188-km (116.8 miles) 11th stage of the 102nd Tour de France cycling race from Pau to Cauterets in the French Pyrenees mountains, France, July 15, 2015.

Eric Gaillard/Reuters

The pack of riders cycle during the 188-km (116.8 miles) 11th stage of the 102nd Tour de France cycling race from Pau to Cauterets in the French Pyrenees mountains, France, on Wednesday

The pack of riders make its way past Didi Senft, a cycling enthusiast better known as 'El Diablo', during the 7th stage of the 102nd Tour de France cycling race...REFILE WITH PHOTOGRAPHER NAME  The pack of riders make its way past Didi Senft, a cycling enthusiast better known as 'El Diablo' (The Devil), during the 190.5-km (118.4 miles) 7th stage of the 102nd Tour de France cycling race from Livarot to Fougeres, France, July 10, 2015.

Eric Gaillard/Reuters

The pack of riders make its way past Didi Senft, a cycling enthusiast better known as ‘El Diablo’ (The Devil), during the 190.5-km (118.4 miles) 7th stage of the 102nd Tour de France cycling race from Livarot to Fougeres, France on Friday

Chinese Kazakh eagle hunters sit on horseback as they travel to a local competition in the mountains of Qinghe County, Xinjiang, northwestern China. The festival, organised by the local hunting community, is part of an effort to promote and grow traditional hunting practices for new generations in the mountainous region of western China that borders Kazakhstan, Russia and Mongolia. The training and handling of the large birds of prey follows a strict set of ancient rules that Kazakh eagle hunters are preserving for future generations.

Kevin Frayer/Getty Images

Chinese Kazakh eagle hunters in the mountains of Qinghe County, Xinjiang, northwest China, travel to a festival organised by the local hunting community to promote traditional hunting practices in the mountainous region that borders Kazakhstan, Russia and Mongolia

Afghan horse riders compete for the goat during a friendly buzkashi match on the outskirts of Kabul, Afghanistan, Thursday, Jan. 29, 2015. Buzkashi is a traditional and the national sport of Afghanistan, where players compete to place a goat carcass into a goal circle. It was banned during the Taliban rule.

Rahmat Gul/AP

Afghan horse riders compete for the goat during a friendly buzkashi match on the outskirts of Kabul, Afghanistan on Thursday. Buzkashi is a traditional and the national sport of Afghanistan, where players compete to place a goat carcass into a goal circle

Motorcyclists take part in a protest against the Yemeni Government's decision to begin enforcing a long-standing motorbike ban, Sana a, Yemen, 23 October 2014. Reports state that amid increased insecurity resulting from a Houthi take over of the Yemeni capital 21 September and a string of attacks and assasinations carried out on senior army and security officials primarily utilising motorcylces as a form of transport the Yemeni Government has taken the decision to resume enforcing a ban on motorbikes.

Yahya Arhab/EPA

Motorcyclists take part in a protest against the Yemeni Government’s decision to begin enforcing a long-standing motorbike ban, Sanaa, Yemen

Runners and riders in the parade ring before the Albany Stakes during Day Four of the 2014 Royal Ascot Meeting at Ascot Racecourse, Berkshire

David Davies/PA

Runners and riders in the parade ring before the Albany Stakes during Day Four of the 2014 Royal Ascot Meeting at Ascot Racecourse, Berkshire

Team Cannondale leads the chase of the first pack for their sprinter Peter Sagan of Slovakia, last in line in the best sprinter's green jersey, during the seventh stage of the Tour de France cycling race over 205.5 kilometers (128.5 miles) with start in Montpellier and finish in Albi, southern France, Friday July 5, 2013. Center is Daryl Impey of South Africa, wearing the overall leader's yellow jersey.

Christophe Ena/AP

Team Cannondale leads the chase of the first pack for their sprinter Peter Sagan of Slovakia, last in line in the best sprinter’s green jersey, during the seventh stage of the Tour de France cycling race over 205.5 kilometers (128.5 miles) with start in Montpellier and finish in Albi, southern France. Centre is Daryl Impey of South Africa, wearing the overall leader’s yellow jersey.

Relatives embrace each other as they race on horses through a cheering crowd during the traditional Fiesta of San Joan (Saint John) in downtown Ciutadella, on the Spanish Balearic Island of Menorca, June 24, 2013. The riders of the horses are the representatives of ancient Ciutadella society - nobility, clergy, craftsmen and farmers.

Enrique Calvo/Reuters

Relatives embrace each other as they race on horses through a cheering crowd during the traditional Fiesta of Sant Joan in downtown Ciutadella, on the Spanish Balearic island of Menorca. The riders of the horses are the representatives of ancient Ciutadella society – nobility, clergy, craftsmen and farmers.