He said: "We are playing against Manchester United. It is not important who the managers are. He (Mourinho) is a good manager who has won a lot. I'm more concerned about Lukaku, Mata and Rashford.
"[They] are a massive club who, as always, have spent a lot of money and are doing well. They have to compete for everything. As always we will try to do our best to get three points if we can, but we know it will be difficult."