The powerful midfielder dramatically netted a late strike to shift the scoreline to his side’s favour, essentially ravaging the anticipations of the travelling side.
Nevertheless, the former Everton star has reportedly divulged what Jose Mourinho described to him before he came on to score the crucial strike.
Paul Pogba had got the home crowd dynamic early on when he marked the opener in the 16th minute of the widely anticipated fixture.
The Mancunians managed to hold the lead thus bestowed by the Frenchman intact until Mkhitaryan netted a long-range shot in the opening moments of the latter half.
WATCH: What Sanchez Did When He Saw Wenger And His Former Teammates
In Arsene Wenger’s final match as the Gunners’ boss at Old Trafford, the Belgium international started on the bench to witness the scoreline shift to 1-1 and stay that way for quite some time.
Accordingly, the Portuguese tactician deployed Fellaini in the hopes of breaking the deadlock, and the skilful figure revealed what the gaffer told him just before he stepped onto the field.
He told Optus Sport: “He told me to go into the box because I have the possibility to keep the balance with the midfielder.
“One point wouldn’t have been too bad but in the end, we have three points and that’s most important today. I know my quality I know if the ball comes into the box I can be dangerous, it was a good ball, I tried to flick it, it’s good for me and good for the club.”