Tokyo 2020 heat worries doctors

Wesley Korir (right) hands a bottle of water to eventual winner Eliud Kipchoge during the men's marathon at the 2016 Olympics in Rio de Janeiro, Brazil, on August 21, 2016 [Courtesy]

Medics warn temperatures could make 2020 Olympic marathon ‘deadly’.

A group of Japanese doctors yesterday urged Olympic organisers to start the Tokyo 2020 marathon as early as 5:30 am, saying failure to do so could “lead to deaths” from heatstroke.