United's full pre-season schedule will be announced next week, but it will include three friendlies against higher division opposition at Glanford Park.
That will see at least one Premiership side, one who is currently in the Championship play-offs and one Championship team visit North Lincolnshire.
The Championship side is Hull City, whose chairman had already confirmed in a fans forum that a game was being lined up.
Iron boss Brian Laws told BBC Radio Humberside: "We've got three cracking games at home, and hope people will be pleasantly surprised."
All the matches will be preceeded by a week-long tournament in Ibiza, competing with Carlisle United, Stockport County and a local side.