The Dutchman also hinted that the club might consider exercising the buy-back clause in Alvaro Fernandez's contract to bring the youngster back to Old Trafford. The left-back joined Benfica this summer but an Old Trafford return is a possibility.
"I think the process is perfect, we have a buy-back, so we have control of the situation. We have to assess the situation if he can maybe be an option for us in future, but playing for Manchester United in the Premier League is not so easy. You need experience," he added.