The Portuguese told reporters today that he had informed executive vice-chairman Ed Woodward of his desire to strengthen in four key positions ahead of the new season.
"In my initial analysis from January and through the months I was thinking of four players but I'm not a difficult person to work with in spite of if you make it look different," he said at his pre-match presser. "I understand the reality of the market, the numbers and my club by doing 75% of what I asked, the club did well.
"I don't think I'm in a position of crying, moaning, protesting. I'm not in a position to say I'm not happy. I'm happy with the club's efforts. If the remaining 25% don't arrive I will not moan, I will just go with everything I have to try to win every match I play.
"We got a central defender that can play in many other positions, which is important. We got a central midfielder, a striker, obviously the 25% would be for a player from the sides, but we have players.
"If we cannot strengthen the team in these areas we have players that we can trust."