League leaders Aberdeen look to halt a run of three straight defeats in league and cup when they travel Ross County, still hurting from their recent Highland derby defeat to Inverness. Should they slip up, Celtic will return to the summit of the table if they avoid defeat at Motherwell. Inverness CT went unbeaten against Kilmarnock last season and will be keen to continue that pattern when they travel to Rugby Park. Elsewhere, Partick Thistle, who finally picked up their first league win after 10 attempts, will have their work cut out when they travel to face in-form St Johnstone while Hamilton host Dundee. On Sunday, bottom club Dundee United entertain Hearts. There will also be selected action from the Championship.