In pics: finals of 2019 IAAF Diamond League

Nijel Amos (L front) of Botswana competes during the men's 800m final at 2019 IAAF Diamond League at Khalifa International Stadium in Doha, Qatar, May 3, 2019. Nijel Amos won the gold medal with 1 minute and 44.29 seconds. (Xinhua/Nikku)