Scottish Cup holders St Johnstone continue the defence of their trophy on Saturday when they face Queen of the South at Palmerston.
The draw for the quarter-finals takes place at Hampden on Monday at 2pm and the weekend action gets under way when Dundee face Celtic at Dens Park, live on Sky Sports at 12.30pm.
Also on Saturday, Hibernian host Arbroath, Falkirk are up against Brechin City, Partick Thistle entertain Inverness Caley Thistle and Berwick Rangers are away to Lowland League Spartans.
On Sunday, Stranraer meet Dundee United at Stair Park, live on Sky Sports at 12.30pm, and the Ibrox encounter between Rangers and Raith Rovers is live on BBC Scotland, kick-off 3.00pm.