Leigh Griffiths came off the bench to score a second-half hat-trick as Celtic hit back to beat Kilmarnock 4-1 at Parkhead on Wednesday night.
Darryl Westlake gave Killie the lead just after the break but Kris Commons equalised and Griffiths, who had replaced James Forrest, struck in 66, 80 and 85 minutes.
The win takes Ronny Deila's men eight points clear of Aberdeen at the Premiership summit while Gary Locke's team stay seven points above the relegation zone.