Green Bay Packers' Johnathan Calvin rides a bike to NFL football training camp on July 27, 2017, in Green Bay, Wis. (Photo by Morry Gash/AP Photo)

To mark the occasion of International Women' s Day on March 8, 2018 AFP presents a series of photos depicting women performing roles or working in professions more traditionally held by men. Here: Professional wrestler Cristal (Crystal) poses for a photograph in her trainig place on February 09, 2018 in Mexico city, Mexico. (Photo by Omar Torres/AFP Photo)

Women sunbath as Ferrari's Brazilian driver Felipe Massa drives past during the third practice session at the Circuit de Monaco in Monte Carlo on May 25, 2013 ahead of the Monaco Formula One Grand Prix. (Photo by Alexander Klein/AFP Photo)

Indian paramilitary forces march during the annual Republic Day parade on Rajpath in New Delh, January 26, 2013. Republic Day commemorates the 1950 adoption of India's constitution. (Photo by Kevin Frayer/Associated Press)

Swedish photographer Paul Hansen won the 2012 World Press Photo award Friday for newspaper Dagens Nyheter with a picture of two Palestinian children killed in an Israeli missile strike being carried to their funeral.

Photo: In this photo provided on Friday February 15, 2013 by World Press Photo, the 2013 World Press Photo of the year by Paul Hansen, Sweden, for Dagens Nyheter, shows two-year-old Suhaib Hijazi and her three-year-old brother Muhammad who were killed when their house was destroyed by an Israeli missile strike. Their father, Fouad, was also killed and their mother was put in intensive care. Fouad's brothers carry his children to the mosque for the burial ceremony as his body is carried behind on a stretcher in Gaza City, Palestinian Territories, November 20, 2012. (Photo by Paul Hansen/Dagens Nyheter/AP Photo)

A penitent called “Morion” checks his mobile phone in Mogpog town on Marinduque island in central Philippines April 14, 2014. During the annual festival, masked and costumed penitents called “Moriones” dress in attire that is the local interpretation of what Roman soldiers wore during biblical times. Holy Week is celebrated in many Christian traditions during the week before Easter. (Photo by Erik De Castro/Reuters)

The provincial highest chimney collapses as it is demolished by explosives in Shenyang, Liaoning province, April 28, 2014. The 150-metre-high chimney used to be part of a local heating factory, according to local media. (Photo by Sheng Li/Reuters)

A soldier poses with a Hythe Mk III Gun Camera during training activities at Ellington Field, Houston, Texas in April of 1918. The Mk III, built to match the size, handling, and weight of a Lewis Gun, was used to train aerial gunners, recording a photograph when the trigger was pulled, for later review, when an instructor could coach trainees on better aiming strategies. (Photo by Harry Kidd/WWI Army Signal Corps Photograph Collection via The Atlantic)