Outwitting Sir Alex Ferguson is only half the challenge on Saturday, with United boasting a galaxy of stars.
"How long have you got?" McDermott said when asked about their dangermen.
"You can take your pick, really.
"But we have to make sure that we do what we have to do, and we go out there and we're ready, and our shape's right, and we attack the game.
"We're playing at home, we're playing at Madejski Stadium, and anyone that knows Reading Football Club knows that, in the last three years, how difficult a place it is for the opposition teams to come, and the stats bear that out."