Mourinho fielded a back-three for the game against Unai Emery’s in-form side, who are now unbeaten in 20 games, and his side fought back twice to earn a point.
The desire and effort was visible in all of his Mourinho’s players, which is more than can be said for Saturday’s 2-2 draw against relegation-candidates Southampton.
Despite once again conceding the lead on the South Coast – United have done so in seven of their last nine top-flight fixtures – Paul Pogba had a woeful 90 minutes, and it was reported that Mourinho described him as a “virus” after the game.
The Portuguese manager was more positive after last night’s draw, however, saying his side showed “big heart and soul” to come back twice from behind.
Darmian, who has struggled for regular game time since his arrival in July 2015, made only his third start of the season against the Gunners.
And the Italian rubbished claims that Mourinho does not have a strong rapport with the players after the draw at Old Trafford last night.
“Between us [there are] no problems – between the manager and the players,” Darmian told ESPN Brazil.
“So we have to keep working. Try to work harder and try to do what we are doing to try to win as many games as possible.
“I think that it was not the result that we wanted before the game.
”But today was a tough game. We started very well but we conceded two goals.
“I think we had two good reactions after their goals and at the end it was a draw.”
Diogo Dalot, who played on the opposite flank to Darmian, struggled against Arsenal’s explosive left side, but also back his boss.
“Jose Mourinho brings all his experience and knowledge of the game to us all, not just me,” Dalot said of his compatriot.
“I think he is one of the best coaches ever and for me it is a dream come true to be alongside him and to learn from him. For me, it is very good.”
United now head into the thick of their festive fixtures with Fulham on Saturday, beginning a run of seven games in 26 days.
“Now we have to think game by game and try to win a lot of matches because this period is very important,” Darmian added.
“A lot of games are coming and you have to be ready.”