Mexico's Cecilia Perez, center, collapses after competing in a women's triathlon test event at Odaiba Marine Park, a venue for marathon swimming and triathlon at the Tokyo 2020 Olympics, Thursday, Aug. 15, 2019, in Tokyo. Tokyo’s summer heat has forced an Olympic women’s triathlon qualifying event to be shortened because of high temperatures that are likely to plague next year’s games. (AP Photo/Jae C. Hong)
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