Switzerland's Roger Federer poses with his trophy during the awarding ceremony of the men's singles final match against Croatia's Marin Cilic at Australian Open 2018 in Melbourne, Australia, Jan. 28, 2018. (Xinhua/Bai Xuefei)
Switzerland's Roger Federer poses with his trophy during the awarding ceremony of the men's singles final match against Croatia's Marin Cilic at Australian Open 2018 in Melbourne, Australia, Jan. 28, 2018. (Xinhua/Bai Xuefei)