Kyuta Kumagai, 10, trains on a Dohyo, a traditional ring in which sumo wrestling bouts are held, at Komatsuryu Sumo Club in Tokyo, Japan, December 6, 2020. "Sumo training is something you don't describe with words like 'enjoy'," Kyuta said. "When it became tough? I have thought about (quitting) sometimes." REUTERS/Kim Kyung-Hoon/File Photo TPX IMAGES OF THE DAY SEARCH "GLOBAL POY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2021 PACKAGES.