Leigh Griffiths netted his 30th goal of the season in all competitions as Celtic saw off Ross County 2-0 on Saturday to go three points clear at the top of the Scottish Premiership.
Griffiths fired home on the stroke of half-time to put the hosts in front at Celtic Park, before Dedryck Boyata doubled the advantage with a fine header in the second period.
Managerless Kilmarnock won for the first time in four matches in all competitions, as goals from Greg Kiltie and Craig Slater secured a 2-0 victory at Motherwell.
Killie jumped above their opponents with the victory, with Motherwell now second bottom.
Lowly Dundee United secured a goalless draw at Hamilton Academical, who had Michael Devlin sent off in the 90th minute for two bookable offences.
Hearts' clash with Partick Thistle was postponed due to a waterlogged pitch at Tynecastle.
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