Referee appointments for this weekend's games in the Ladbrokes Premiership, Championship, League 1 and League 2.
Ladbrokes Championship - Friday
Morton v Raith Rovers - John McKendrick (BBC ALBA, 7.45pm)
Ladbrokes Premiership - Saturday
Celtic v Motherwell - Bobby Madden
Dundee v Hamilton Academical - Don Robertson
Inverness CT v Dundee United - Craig Thomson
Kilmarnock v Aberdeen - Steven McLean
Partick Thistle v Ross County - Andrew Dallas
St Johnstone v Heart of Midlothian - Kevin Clancy
Ladbrokes Championship - Saturday
Alloa Athletic v St Mirren - Alan Muir
Falkirk v Rangers - Willie Collum (BT Sport, 12.30pm)
Hibernian v Queen of the South - Brian Colvin
Livingston v Dumbarton - Mat Northcroft
Ladbrokes League 1 - Saturday
Albion Rovers v Forfar Athletic - Gavin Ross
Brechin City v Stranraer - Mike Roncone
Cowdenbeath v Airdrieonians - Greg Aitken
Dunfermline Athletic v Stenhousemuir - George Salmond
Peterhead v Ayr United - Alan Newlands
Ladbrokes League 2 - Saturday
Clyde v Arbroath - David Munro
East Fife v Montrose - Gavin Duncan
East Stirlingshire v Berwick Rangers - Steven Kirkland
Elgin City v Queen's Park - Colin Steven
Stirling Albion v Annan Athletic - David Lowe