Rangers make six changes from Sunday's 1-1 draw with Motherwell as Nathan Patterson returns from an ankle injury, while Alfredo Morelos is fit to start after a tight hamstring.

Joe McLauchlin takes over in goals, Leo Balogun and Calvin Bassey join Patterson in the back four and John Lundstram is in the midfield engine room.

Ianis Hagi is back from his spell of isolation after testing positive for Covid while away with Romania and he is on the bench along with Brandon Barker, who hasn't been seen at all this season.

Stephane Omeonga makes his Livingston debut, while Cristian Montano and Odin Bailey are also given starts.

Image source, SNS

Dundee: Legzdins, Kerr, Fontaine, Ashcroft, Marshall, Byrne, McGhee, McGowan, Anderson, McMullan, Griffiths.

Substitutes: Lawlor, Sharp, Jakubiak, Elliot, McCowan, Robertson, Panter, Sheridan.

St Johnstone: Clark, Brown, Rooney, Ambrose, McCart, Booth, Craig, Wotherspoon, Crawford, Middleton, Kane.

Substitutes: Parish, Devine, Gilmour, Vertainen, O'Halloran, Hendry, May, Dendoncker, Ballantyne.

Rangers: McLauchlin, Patterson, Goldson, Balogun, Bassey; Lundstam, Kamara, Aribo; Wright, Roofe, Morelos.

Substitutes: McGregor, Tavernier, Hagi, Davis, Barker, Bacuna, Sakala, Barisic, Arfield.

Livingston: Stryjek, Devlin, Obileye, Fitzwater, Penrice; Holt, Omeonga; Lewis, Bailey, Montano; Shinnie.

Substitutes: Barden, Longridge, Kelly, McMillan, Pittman, Forrest, Hamilton, Anderson, Panayiotou.

Good evening. There are eight teams left standing in the Scottish League Cup and we'll know the semi-final line-up later tomorrow.

The Sportsound team are ready to roll on BBC Radio Scotland with live commentary from Ibrox and updates from Dens Park.

Now let's crack on with the team news...

Image source, BBC Sport