Australian Open 2018 Final: Roger Federer Beats Marin CilicHighlights from the 2018 Australian Open final, where Roger Federer defeated Marin Cilic to win his sixth title in Melbourne and 20th career Grand Slam. SI Staff|Share on FacebookShare on XAdd us as a preferred sourceAustralian Open 2018 Final: Roger Federer Beats Marin CilicAdd us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Jan 28, 2018 | Modified Jan 28, 2018SI STAFFShare on FacebookShare on XHome/Tennis