Manchester United manager Louis van Gaal has said that he won't be drawn into mind games with Chelsea counterpart Jose Mourinho.
Mourinho has built up a reputation during his time in England for his ability to get under the skin of his contemporaries, but Van Gaal has said that he is "not concerned" by other managers.
When asked whether he would enter a war of wards with Mourinho, Van Gaal told The Express: "I don't think I will fall out with him. He is my friend.
"For me, [mind games] are not so interesting. I have to manage my club.
"That is already difficult enough. I am not concerned with other clubs or other managers."
Mourinho was Van Gaal's assistant for three years at Barcelona from 1997 to 2000.