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Jona Efoloko (L) of Britain celebrates after winning men's 200 meters at the IAAF World U20 Championships in Tampere, Finland on July 13, 2018. Efoloko won the gold medal with 20.48 seconds. (Xinhua/Matti Matikainen)
Jona Efoloko (L) of Britain celebrates after winning men's 200 meters at the IAAF World U20 Championships in Tampere, Finland on July 13, 2018. Efoloko won the gold medal with 20.48 seconds. (Xinhua/Matti Matikainen)