They comfortably beat Swiss side Young Boys on Wednesday, and host Wolves at Old Trafford on Saturday afternoon, with Jose Mourinho confirming that only Marcos Rojo and Ander Herrera are the only absentees through injury.
"I could say we were exhausted, Champions League, terrible pitch [at Young Boys of Bern] - the body suffers the different impact on an artificial rather than actual grass - not coming home after the match".
A draw at home to Wolves was not the result Manchester United wanted.
In his post-match press conference, the Manchester United manager aimed some blame toward three players: Jesse Lingard, Alexis Sanchez and Antonio Valencia, who, in his words, "didn't play" as United slip down to fifth place behind Watford, Chelsea, Liverpool and Manchester City.
Jose Mourinho is confident that Manchester United are improving ahead of their clash against Wolves on Saturday.
The Brazilian's crisp finish lifted United but not sufficiently to make the game safe and Wolves grabbed a deserved point in the second half when Portugal midfielder Joao Moutinho curled a fine finish past David De Gea.
"What is most important for me is that we are growing".
"I think they got good young players and got also good experienced, stable players".
"I think the result is fair".
But it was United who grabbed the lead, against the run of play.
Macari said on MUTV: "They are playing with confidence and are playing some good football".
When Luke Shaw looped the ball back into the box, Lukaku was stood by himself six yards out but waited for the ball to fall for him.
Nuno Espirito Santo's side stormed to promotion from the Championship last season and are adapting well to life back in the top flight. "If we had played against Wolves like we did against Tottenham, then I think we would win".
Mourinho is a client of Mendes himself, and the United boss believes that the agent has helped to build a "really really good team" at Molineux.
"We are growing game by game".