The right-back's debut was delayed while he recovered from knee surgery but he looked assured as he made his first appearance for the club on Wednesday in a 3-0 Champions League victory over Swiss club Young Boys.
United will be hoping to make it four in a row at Old Trafford on Saturday when they welcome Wolves to Old Trafford, a side to now sitting one point behind the Red Devils in the Premier League. That is hard enough, he doesn't need to face more difficulty.
Mourinho will be without suspended Marcus Rashford and Nemanja Matic against Wolves, who have lost just one of their first five matches to sit ninth in the table.
Wolves are the only Premier League team to secure a positive result against defending champions Manchester City in the current campaign. We are going to play better than we did, so that's what we can do.
Wolves held their own against Manchester City last month, drawing 1-1 at Molineux, and Nuno said: "There is no game I recall that we changed".
"Last year I had the opportunity to play at Old Trafford with Benfica and it was a great experience and now here is another opportunity".
Manchester United suffered consecutive losses to Brighton and Tottenham Hotspur to lose ground in the title race after three games.
"I think good results, good performances, they make miracles and bad results and bad performances, they make you look more exhausted, more upset, more ugly, more everything", Mourinho said. Football is a little bit like this.
"It's a good team - fantastic players, fantastic manager".
"Tomorrow, it is two good teams trying to achieve the best result possible".
"I think Paul came from the World Cup and he was the last one to come because he played the final.
I don't want to say our improvement has the name of Chris or Victor; the team is playing better and they are part of the team that plays these matches".