Roger Federer inflicts joint worst defeat of Andy Murray 's career . Swiss took just 15 minutes to lead 6 - 0 6 - 1 . Federer victory propels Kei Sato into semifinals . ( grand ) slam finals and stuff , which has been very tough , but in terms of the way the match went , it was not ideal from my side of the court . Murray beat the Raonic replacement David Ferrer earlier on Thursday .
Roger Federer inflicts joint worst defeat of Andy Murray 's career . Swiss took just 15 minutes to lead 6 - 0 6 - 1 . Federer victory propels Kei Sato into semifinals . Murray beat the Raonic replacement David Ferrer earlier on Thursday .