Switzerland's Roger Federer competes during the men's singles final match against Croatia's Marin Cilic at Australian Open 2018 in Melbourne, Australia, Jan. 28, 2018. (Photo/Agencies)
Switzerland's Roger Federer competes during the men's singles final match against Croatia's Marin Cilic at Australian Open 2018 in Melbourne, Australia, Jan. 28, 2018. (Photo/Agencies)