Kick Off: 7.45pm
Coverage: Live on BBC Radio Scotland
Craig Brown will be looking for a reaction from his Aberdeen side after they only managed to scrape a 1-1 draw on Saturday. Facing a probable semi final draw against Celtic will have most likely dampened Aberdonian hopes of a cup final but going through would be a great result nonetheless.
David McNamee is a major injury doubt after limping out of Saturday's match, and Rob Milsom could also miss out. Ryan Jack and Sone Aluko could both come in after being rested and dropped respectively, with Jack potentially replacing Milsom in the centre of midfield or playing out on the right hand side. If McNamee misses out he will most likely be replaced at right back by Rory McArdle, who came on for him on Saturday. Fraser Fyvie, Darren Mackie and Yoan Folly are still all out with long term injuries.
I would personally like to see Craig Brown keep it simple, particularly with home advantage on the Dons' side. Steven Smith had a good game on Saturday but I would rather if he moved back to left back, with Andy Considine moving inside to partner Zander Diamond. Scott Vernon has gone a few games without a goal and you could easily make a case for his exclusion but I would like to see him start -he has an ability to hold the ball up not present in any other Aberdeen player and has linked up very well with Chris Maguire in the past, even if their understanding was not really there on Saturday. Josh Magennis has been in good form of late but I prefer having him as an option on the bench.
There are no more excuses anymore - with no wins in four improvement will be needed tonight. I'm not doing a prediction for superstitious purposes, suffice it to say that I will not be happy if Aberdeen crash out tonight!