Celtic debutant Tony Watt scored twice in three remarkable second-half minutes to help the Scottish Premier League champions to a 3-0 victory over Motherwell at Fir Park.
The game was drifting when the 18-year-old striker replaced Pawel Brozek in the 59th minute but it came to life when he volleyed in a Victor Wanyama cross three minutes later from a tight angle.
With the travelling support still celebrating, he drove low past Well goalkeeper Darren Randolph from the edge of the box.
Hoops wing-back Cha Du-Ri headed in a third to deal a blow to the home side's Champions League aspirations, the Steelmen now only three points ahead of fourth-placed Dundee United having played the same amount of games.
Hibernian old boy Dean Shiels ensured the Scottish Cup finalists' battle to avoid relegation continues after Kilmarnock claimed a narrow 1-0 victory at Easter Road.
Hibs were dominant for long periods but it was Scottish Communities League Cup winners Killie who emerged victorious as Shiels converted a 44th-minute penalty against the run of play after Jorge Claros was adjudged to have brought down Liam Kelly.
Leigh Griffiths, who scored the William Hill Scottish Cup semi-final winner to set up next month's all-Edinburgh final, was lively for Hibs, but Pat Fenlon's side now hold a six-point advantage over bottom club Dunfermline with four games to play.