"The fact that it's also a derby as well as a play-off semi-final doesn't matter too much, but I don't think you can divorce the two.
"It'll be physical, fast and furious. I think Scunthorpe will start the game as favourites and that won't bother us one little bit."
Alexander will pick from a full strength side, with chris Cornelly returning from suspension and Ben Futhcer and Alan Marriott expected to shake off knocks.
Iron manager Brian Laws has asked Scunthorpe fans to make a lot of noise tomorrow, as he expects a hostile reception from the Imps faithful.
He also picks from a full squad, with veteran forward Rob Taylor his only doubt. Midfielder Wayne Graves returns after serving a two match ban.
For the full pre-match build up from Scunthorpe visit Iron-Bru.net.