The Iron are 21/10 with Sky Bet to defeat Charlton Athletic at Glanford Park on Tuesday night.
Advance saving! Save by buying your Iron v Charlton Athletic tickets in advance2 October 2018
The draw can be backed at 23/10, with Charlton available at 13/10.
United defeated the Addicks 2-0 at home last season and a repeat is available at odds of 14/1.
Scunthorpe have kept clean sheets in each of their last two games and can be backed at 11/4 for a third in succession.
The Iron are also available at 10/1 to win both halves.