Johnson will be looking for payback against the side that broke his heart when they showed him the door at 16 after five years in the Arsenal Academy.
Johnson, 24, said : "I still remember the day Arsenal told me I wasn't good enough. It's a day I will never forget because it broke my heart.
"But I'm still a massive Arsenal fan and so are all my family and they will all be at the game.
"It's going to be a huge game for me and one I am desperate to win although I don't feel I have anything to prove to Arsenal.
"We know how tough it's going to be — we have to get in their faces but that's one of the strengths of my game. So if the ball is there to be won I will go and win it."