Highlights Cilic Upsets Nadal For Semi-Final Spot 2018 Australian Open

Watch highlights as Marin Cilic advances to the semi-finals of the Australian Open when top seed Rafael Nadal retires in the fifth set. Watch more video and live matches at www.ausopen.com. Highlights not available in Aus., NZ or Canada and only available in Europe and USA 24 hours after completion of the match. Photo Credit: Michael Dodge/Getty Images