The referees have been announced for the midweek Premiership fixtures, with a full card of games on Wednesday night.
After this week's round of games every team will have played each other once, with Celtic currently leading Rangers on goal difference at the top.
The Gers are up in Dingwall to face Ross County and Bobby Madden will be the man in the middle for that one, assisted by Alan Mulvanny and Kylie Cockburn.
Celtic kick off at the same time against St Mirren and Kevin Clancy has been appointed, with Frank Connor and Andrew McWilliam as his assistants.
Willie Collum will run the rule over Hamilton vs Aberdeen and will hope for a quieter night than his last midweek excursion when he was forced to apologise to Roma for incorrectly giving a last-minute penalty against them.
Scottish Premiership matchday 11 referees:
Celtic vs St Mirren - Kevin Clancy
Hamilton vs Aberdeen - Willie Collum
Hibs vs Livingston - Gavin Duncan
Motherwell vs Kilmarnock - Don Roberston
Ross County vs Rangers - Bobby Madden
St Johnstone vs Hearts - David Munro
