Celtic marked Roy Keane's home debut by beating Kilmarnock 4-2 to stay seven points clear of Hearts at the top of the Scottish Premier League.
The hosts went 2-0 up inside 15 minutes with a 25-metre free kick from Japanese international Shunsuke Nakamura and a penalty by Shaun Maloney.
Kilmarnock pulled one back when Steve Naismith sent Polish keeper Artur Boruc the wrong way from the penalty spot.
The visitors equalised after the break with a header from Danny Invincible but Celtic restored their advantage on 52 minutes when Stephen McManus bundled the ball home.
Polish striker Maciej Zurawski then scrambled the fourth goal with 24 minutes left.
Celtic have 54 points from 22 games.
Second-placed Hearts moved to 47 points with a 4-1 rout at Dunfermline Athletic.