CELTIC struggled past Alloa in the Betfred Cup to book a semi-final slot alongside Rangers and Morton.
An Old Firm semi-final or final is a possibility but Aberdeen and St Johnstone will be hoping do something to stop the latter happening.
The final quarter-final is the toughest to call with both sides capable of beating each other.
The Dons have taken time to get going this season but looked better with Jonny Hayes back as they won 3-1 at Dundee on Sunday.
Saints are back on track after successive wins against Partick Thistle and Hearts without conceding.
It would take a brave man to call this – and I'm not sure I'm the one.
Aberdeen are rightly favourites at 5-6 with William Hill but have a poor home record against Tommy Wright's men.
They've won just four of the last 14 and last season crashed 5-1 and drew 1-1. There have been five draws in there including three 0-0s and this might need extra time to separate the sides.
A draw after 90 minutes pays 14-5 at bet365 while Saints are a biggest 19-5 at tournament sponsors Betfred.
To win after extra time McBookie offer 10-1 Dons and 20-1 Saints and to win on penalties it's 12-1 each of two.
As I said both teams scored in the Pittodrie games last season but before that only one of 10 saw both sides on target.
I'd favour both to score tonight as the Dons have loads of attacking options but have conceded in their last four. That pays evens at 888sport.
Adam Rooney is 4-1 favourite with William Hill and Ladbrokes to break the deadlock and penalty taker Kenny McLean the same prices with both firms.
For Saints the man most likely is Graham Cummins who is 9-1 at bet365 and just to score Saints are 4-7 at Ladbrokes.
It's a tough call this one and an early goal could make a difference but I'll take a chance on a 1-1 draw at 13-2 with 888sport.
Bets to Consider
Dons v Saints btts
Draw
Dons to win on penalties
Saints to win on penalties
In December 2020 we sadly 
Niall McGinn To Score Anytime @ 7/2 paddypower