"To stay in this position is not our ambition, but it's the one we're in at this moment and we have to fight to keep it".
Mkhitaryan, who struggled to convince Mourinho of his qualities at United, marked his first Arsenal start by providing three assists - including one for fellow new recruit Pierre-Emerick Aubameyang - in a 5-1 rout of Everton.
Expanding on his comments about Old Trafford, Mourinho continued: "It's not Portsmouth".
The Chilean bagged his first United goal in the Premier League clash at Old Trafford - although it was not straightforward. Here the atmosphere is a bit quieter, ours is not very enthusiastic but the players love playing here.
Sanchez opened his Manchester United account from the penalty spot in a 2-0 win against Huddersfield Town at Old Trafford on Saturday afternoon. "But the players like to play at home".
He also, after the 1-0 win over Tottenham in October, expressed his unhappiness with United fans over what he regarded as unfair treatment of Romelu Lukaku.
"I don't think it is a dream goal for Alexis - every player prefers to score a penalty".
"Alexis was enjoying the game, he arrived in the end completely dead but he was really enjoying the dynamic of the team and of the team's game".
Asked about his decision to start the French worldwide on the bench, Mourinho said, "I changed a few players. I made a few changes thinking about the characteristics of this game", he told reporters at his post-match press conference. If it was about punishing I would be punished too because we are a team.
Former Spurs midfielder Waddle believes Sanchez is the type of player that Pogba will thrive alongside in the Red Devils team.
Bournemouth consolidated their place in the top 10 by coming from behind to beat Stoke City 2-1 and, on a good day for the south-coast sides, Brighton & Hove Albion beat West Ham United 3-1 to draw level with them on 27 points.