Heart of Midlothian v Celtic
BT Murrayfield, kick-off 1.30pm - live on BT Sport
Referee: Willie Collum
Assistant referee 1: Graeme Stewart
Assistant referee 2: Alan Mulvanny
Fourth official: Nick Walsh
Aberdeen v Rangers
Hampden Park, kick-off 4.30pm - live on BT Sport
Referee: John Beaton
Assistant referee 1: Douglas Ross
Assistant referee 2: Dougie Potter
Fourth official: Steven MacLean
