United manager Sir Alex Ferguson appeared to play into West Brom's hands by leaving Rooney on the bench for much of yesterday's game.
Di Matteo neatly sidestepped the Rooney issue, insisting there was no feeling of euphoria when he saw the United team-sheet before kick-off.
"Javier Hernandez scored didn't he?" challenged the Italian.
"Manchester United are a squad full of quality players. You look at their team-sheet and think 'oh-oh, they have a strong side there'."