The United playmaker is said to have struggled psychologically since his £26m switch to Old Trafford this summer.
Jose Mourinho has been reluctant to play the 27-year-old, even when declared available after suffering with fitness issues early on.
With his confidence dented somewhat at United, Henrikh Mkhitaryan was able to escape Manchester for Armenia over the international break.
Jurgen Klopp, he trusted me and gave the chance to play in his team, he made me one of his key men and he worked a lot on my psychological part
Henrikh Mkhitaryan
And the former Bundesliga star, who also had a slow start at Dortmund, has reflected on how his managers have influenced him in recent years.
“Jurgen Klopp, he trusted me and gave the chance to play in his team, he made me one of his key men and he worked a lot on my psychological part,” Mkhitaryan told the FFA’s official website.
“Thomas Tuchel, he opened all the abilities in me, he gave me full confidence and things were flowing naturally, it was a feeling like I was ‘flying in the air’ - so free I was in my movements.
“Regarding Jose Mourinho, I hope I can learn a lot from him as well. He is a coach with a fantastic record.”
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Klopp’s shown how his approach to management has brought the best out of his players at Liverpool over time.
United’s arch-rivals sit top of the Premier league table with 11 games gone, while Mourinho’s side are stumbling somewhat in sixth place.
Mkhitaryan’s last top-flight appearance came in the Red Devils’ 2-1 defeat at home to Manchester City on September 10.
But, having been restricted to a cameo in the Europa League of late, he remains determined to prove his worth at Manchester United and under Mourinho.
Mkhitaryan added: “I was always taught by my father to challenge myself and to continue to evolve in my career and I saw the move to Manchester United as an opportunity to grow as a player and as a person.
“It was definitely not the salary that made me join Manchester United, I went for __football reasons. For the history of the club, the league, the fans and the coach because he is one of the best in the world.
“Today I don’t have enough playing time, so I have to do all my best so the coaching staff gives me the chance to play.”
The attacking midfielder’s next opportunity will come against Arsenal on Saturday (12.30pm), although Mourinho is expected to leave him out of the starting XI again.