The Gabon worldwide moved to the club from Borussia Dortmund last month, and marked his impressive debut with a goal, and will be looking to add to that tally against North London rivals Tottenham this afternoon.
The Red Devils used the Armenia worldwide in a swap deal to land Alexis Sanchez last month, and Mkhitaryan has fired shots at his former manager.
The Armenia worldwide provided three assists on his full debut during last week's 5-1 win over Everton at the Emirates and summed up the difference between his two most recent bosses by contrasting their approach to man management.
"I have known him very well, he is one of my best friends and the best teammate I have ever had. I don't want to blame anyone.I am starting a new chapter in my life, in my football career and I am very happy to be here", he is quoted as saying by Sky Sports News.
"What can I say?" I met him a few times before by coincidence and he looks highly focused on his job.
"I won't mention all the details because it is not fair but yes, when I signed for Arsenal, I was in touch with him saying "so, the first step is done, now we are waiting for the second one", said the Armenian. The 28-year-old made his debut last weekend in Arsenal's 5-1 win over Everton and opened his account for the club after scoring their fourth goal.
"Of course, first of all we have to win lots of games".
Prior to the North London derby, Mkhitaryan claimed he did have an impact at Old Trafford. "I hope not. I don't know how far he is since his last operation, but I put him there because we had room, I want him there and I want to give him strength as well to fight to come back".