Referee appointments for the Betfred Cup quarter-finals, which take place next Tuesday, Wednesday and Thursday.
Tuesday 19 September
Hibernian v Livingston - Bobby Madden (7.45pm)
Partick Thistle v Rangers - Steven McLean (BT Sport, 7.45pm)
Wednesday 20 September
Dundee v Celtic - John Beaton (BT Sport, 7.45pm)
Thursday 21 September
Motherwell v Aberdeen - Kevin Clancy (BT Sport, 7.45pm)