BEIJING, CHINA - AUGUST 13:
Two players wipe sweat during the first station match of 2016 Swamp Soccer China tournament at Yuetan Park on August 13, 2016 in Beijing, China. Different from former years\' matches in China, there were four teams composed entirely of women this year. The Swamp Soccer World Cup features a team of extreme football players that play in bogs or swamps. This sport is said to have originated in Finland, with the aim of helping athletes and soldiers exercise, due to the physical demands of the sport.