Herdsmen compete during a Yajia competition in a horse racing fair held in Naqu City, southwest China's Tibet Autonomous Region, Aug. 10, 2020. Yajia, a game like tug-of-war but back to back, is a favorite sport of the Tibetan ethnic group in China. (Xinhua/Zhang Rufeng)

A herdsman competes during a Yajia competition in a horse racing fair held in Naqu City, southwest China's Tibet Autonomous Region, Aug. 10, 2020. Yajia, a game like tug-of-war but back to back, is a favorite sport of the Tibetan ethnic group in China. (Xinhua/Zhang Rufeng)

A herdsman holds a big stone during a stone-lifting competition in a horse racing fair held in Naqu City, southwest China's Tibet Autonomous Region, Aug. 10, 2020. (Xinhua/Zhang Rufeng)