David Robertson struck in the last minute as Dundee United FC ended Rangers FC's hopes of a Scottish treble on a night to forget for the Glasgow giants. Dominant throughout, United booked a Scottish Cup semi-final meeting with Raith Rovers FC on 10 April but Rangers' disappointment may be dulled by news of Celtic FC's 4-0 defeat by a Saint Mirren FC side that had never previously beaten them in the league. Andy Dorman and Steven Thomson each struck twice in Paisley.