Nikola Mektic (Front) of Croatia and Alexander Peya of Austria compete during the quarterfinal match of men's doubles against Novak Djokovic of Serbia and Kevin Anderson of South Africa at the 2018 Rogers Cup in Toronto, Canada, Aug. 10, 2018. Nikola Mektic of Croatia and Alexander Peya of Austria won 2-0. (Xinhua/Zou Zheng)?