Akani Simbine (L) of South Africa and Justin Gatlin of the United States sprint during the men's 100m final of 2017 Doha IAAF Diamond League in Doha, capital of Qatar, May 5, 2017. Akani Simbine claimed the title with 9.99 seonds. Justin Gatlin took the fourth place with 10.14 seconds. (Xinhua/Nikku)
