Youssef El-Arabi of Al Duhail SC celebrates after scoring their fourth goal against Al Ain FC during the round of 16 AFC Asian Champions League football match between Qatar's Al Duhail SC and UAE's Al Ain FC at Abdullah bin Khalifa Stadium in Doha, Capital of Qatar, May 15, 2018. Al Duhail SC won 4-1. (Xinhua/Nikku)