IAAF Vice President and Director-General of the local Organising Committee World Athletics Championships Doha 2019 Dahlan al-Hamad (L) and International Association of Athletics Federations (IAAF) President Sebastian Coe attend the official Press Conference of IAAF World Athletics Championships Doha 2019 in Doha, capital of Qatar, on Nov. 11, 2018. (Xinhua/Nikku)