Celtic kept the pressure on leaders Hearts with a 1-0 victory at Kilmarnock in the Scottish Premier League yesterday.
A first-half goal by Bulgarian Stilian Petrov separated the teams although Celtic striker Craig Beattie missed three chances after the break to kill off the home side.
Chris Sutton held the ball up on the edge of the box for Petrov to burst into the area after 24 minutes and clip a neat, angled shot over sprawling keeper Graeme Smith.
Hearts top the standings on 29 points from 11 games following their 2-0 home win over Dunfermline on Saturday just hours after manager George Burley left the club by mutual consent.