Russell Anderson and Rachel Corsie to present Sixth Round Draw

Aberdeen v Dundee United Sunday 11 February, kick-off 4.30pm, Pittodrie Stadium Date of a postponement: Wednesday 14 February kick-off 7.45pm, Pittodrie Stadium Date of a replay: Tuesday 20 February, kick-off 7.45pm, Tannadice Park

Ayr United v Rangers Sunday 11 February, kick-off 2.30pm, Somerset Park Date of a postponement: Tuesday 13 February, kick-off 7.45pm, Somerset Park Date of a replay: Wednesday 21 February, kick-off 7.45pm, Ibrox Stadium Celtic v Partick Thistle Saturday 10 February 2018, kick-off 12.15pm, Celtic Park Date of a postponement: Wednesday 28 February, kick-off 7.45pm, Celtic Park Date of a replay: Wednesday 28 February, kick-off 7.45pm, The Energy Check Stadium Cove Rangers v Falkirk Saturday 10 February 2018, kick-off 3.00pm, Harlaw Park Date of a postponement: Tuesday 13 February 2018, kick-off 7.45pm, Harlaw Park Date of a replay: Tuesday 13 February 2018, kick-off 7.45pm, The Falkirk Stadium

Dundee v Motherwell Saturday 10 February, kick-off 3.00pm, Dens Park Date of a postponement: Tuesday 20 February, kick-off 7.45pm, Dens Park Date of a replay: Tuesday 20 February, kick-off 7.45pm, Fir Park Greenock Morton v Dumbarton Saturday 10 February 2018, kick-off 3.00pm, Cappielow Park Date of a postponement: Tuesday 20 February, kick-off 7.45pm, Cappielow Park Date of a replay: Tuesday 20 February, kick-off 7.45pm, The YOUR Radio 104FM Stadium Heart of Midlothian v St. Johnstone Saturday 10 February 2018, kick-off 3.00pm, Tynecastle Park Date of a postponement: Tuesday 13 February 2018, kick-off 7.45pm, Tynecastle Park Date of a replay: Tuesday 13 February 2018, kick-off 7.45pm, McDiarmid Park Kilmarnock v Brora Rangers Saturday 10 February 2018, kick-off 3.00pm, Rugby Park Date of a postponement: Tuesday 20 February 2018, kick-off 7.45pm Rugby Park Date of a replay: Tuesday 20 February 2018, kick-off 7.45pm Dudgeon Park