Referee appointments for this weekend's games in the Ladbrokes Premiership, Championship, League 1 and League 2.
Ladbrokes Premiership - Saturday
Aberdeen v Ross County - Don Robertson
Celtic v Kilmarnock - Nick Walsh
Dundee v Hamilton Academical - Greg Aitken
Heart of Midlothian v Rangers - Craig Thomson (Sky Sports, 12.30pm)
Motherwell v Hibernian - Bobby Madden
Partick Thistle v St Johnstone - John Beaton
Ladbrokes Championship - Saturday
Dumbarton v Dundee United - Craig Charleston
Inverness CT v Dunfermline Athletic - Kevin Clancy
Livingston v Brechin City - Stephen Finnie
Queen of the South v Falkirk - Steven Kirkland
St Mirren v Morton - Steven McLean
Ladbrokes League 1 - Saturday
Airdrieonians v Albion Rovers - Alan Newlands
Ayr United v Stranraer - Mat Northcroft
East Fife v Arbroath - Gavin Ross
Forfar Athletic v Raith Rovers - Graham Beaton
Queen's Park v Alloa Athletic - Scott Millar
Ladbrokes League 2 - Saturday
Berwick Rangers v Cowdenbeath - Grant Irvine
Clyde v Elgin City - Lloyd Wilson
Montrose v Edinburgh City - Ryan Milne
Peterhead v Annan Athletic - Kevin Graham
Stirling Albion v Stenhousemuir - Gavin Duncan
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