The Iron can be backed at odds of 8/13 with our official online betting partners Sky Bet to defeat Grimsby Town on Tuesday night.
A draw is available at odds of 29/10, while the visitors are 9/2 for victory.
United can be backed at 11/2 for a 1-0 win, or 7/1 to repeat the 2-1 success they had over the Mariners in this competition nine years ago.
There are all kinds of odds available ahead of the game, and they can be viewed by visiting www.skybet.com/scunthorpe.
Every bet placed via that method benefits the Iron financially, so get betting now!