Watch | Sumo wrestlers mark spring festival in Tokyo

Sumo wrestlers performed at the annual spring festival at a shrine in Tokyo. Thousands gathered to attend an outdoor sumo wrestling tournament. Sumo is Japan's national sport and has roots in religious rituals at Shinto shrines to pray for abundant harvests. The wrestlers weigh about 120 kg and grapple, slap and push each other for victory while wearing traditional loincloths. Sumo wrestlers perform at a ceremonial spring festival at the Yasukuni Shrine in Tokyo.