Manchester United boss Jose Mourinho insists the result won't be important for their derby with Manchester City in Houston.

Around 70,000 fans are expected at the home of the Houston Texans and, while bragging rights are up for grabs, United boss Mourinho's first thought is preparations for the 2017-18 season.

"For me it is a competitive training session that you try to win but it is not the most important thing," he said at the team hotel. "We had two matches against MLS teams, now it is time to raise the level and now we get three of the best teams in Europe (in City, Real Madrid and Barcelona).

"I don't know the way they will face the game, if they want to win the tournament, the derby, I don't know.

"But I know what I want – that is to give minutes to my players, to try to improve, to make mistakes, to repeat exercises from training to stop those mistakes, to make the two new players try to understand the team-mates and for the team-mates to understand them.

"There is always a little bit of rivalry, a little bit of an extra ingredient, but for me it is a friendly. I am not going to jump to celebrate goal, or cry after any goal we concede. It is preparation."