Belgium midfielder Marouane Fellaini has been tipped as one of the players under threat but has been encouraged by contact from the new United boss.
He said: “Mourinho contacted me by text to say welcome to United and to wish me a good Euro. As far as my future is concerned, I’m under contract with Manchester United. In addition, a great manager, Jose Mourinho, is arriving.
“He likes to win titles and I would be honoured and proud to work with him. Now it’s up to me to show he can trust me.”