Referee appointments for this weekend's games in the Ladbrokes Premiership, Championship, League 1 and League 2.
Ladbrokes Premiership - Friday
Dundee United v Celtic - Bobby Madden (BT Sport, 7.45pm)
Ladbrokes Premiership - Saturday
Heart of Midlothian v Motherwell - Kevin Clancy
Kilmarnock v Inverness CT - Don Robertson
Partick Thistle v Dundee - Euan Anderson
St Johnstone v Hamilton Accies - Andrew Dallas
Ladbrokes Championship - Saturday
Alloa Athletic v Morton - Alan Muir
Dumbarton v Queen of the South - Greg Aitken
Rangers v Livingston - Craig Thomson
St Mirren v Raith Rovers - Barry Cook
Ladbrokes League 1 - Saturday
Airdrieonians v Forfar Athletic - David Munro
Ayr United v Cowdenbeath - Gavin Ross
Dunfermline Athletic v Albion Rovers - Gavin Duncan
Stenhousemuir v Brechin City - Steven Kirkland
Stranraer v Peterhead - David Lowe
Ladbrokes League 2 - Saturday
Annan Athletic v East Fife - John McKendrick
Berwick Rangers v Arbroath - Colin Steven
Clyde v East Stirlingshire - Mike Roncone
Elgin City v Stirling Albion - Craig Charleston
Queen's Park v Montrose - Kevin Graham
Ladbrokes Premiership - Sunday
Ross County v Aberdeen - Crawford Allan (Sky Sports, 12.15pm)
Ladbrokes Championship - Sunday
Falkirk v Hibernian - John Beaton (BT Sport, 3.00pm)
