A significant change to his routine in light of the rumours that emerged last night, Jose Mourinho addressed the situation in discussion with BT Sport in his pre-match comments.
Replacement skipper Ashley Young was exposed as Kenedy and Yoshinori Muto stunned Old Trafford with two goals inside the opening 10 minutes for a Newcastle side experiencing their worst start to a top-flight season, but who clearly fancied their chances here.
Juan Mata and Anthony Martial also scored in the second half for United, who came back from a two-goal deficit to end a run of four games without a win in all competitions - form that has manager Jose Mourinho under fire.
"As a friend of mine was saying to me this morning, if tomorrow it rains in London it is my fault, " Mourinho said. After the global break, there is no doubt who the Toon Army want to see leading the line for the club. They scored a great goal and then they put [Marouane] Fellaini, they put Alexis on.
Instead, he claimed the criticism was more of a problem for players who froze under the spotlight.
"The team is working so hard, they know what they have to do, but it's a pity".
The 21-year-old was already on City's shopping list before they made a decision to chase Jorginho for most of the summer before Chelsea bought him, simply by agreeing a fee with Napoli instead of endlessly waiting for a deal to go through.
And Lukaku was full of praise for his team-mate's determination after he netted for the first time this season.
But after being booed off at half-time, United avoided going five games without a win thanks to a thrilling second half fightback.
"We gave ourselves a chance and we're disappointed not to have carried it [the performance] out for 90 minutes", he said.
"The first half was a hard moment for us, but we were more aggressive in the second half and we played more direct and created more chances". 'You could feel the tension with the players, ' said Romelu Lukaku afterwards. We showed today that we have got some threat, certainly in the first half.