Ruben Amorim was pleased with the altercation between Rasmus Hoglund and Amad Diallo after the match in the Czech Republic, with the Manchester United manager seeing the enthusiasm he wants from his players.
After defeats to Arsenal and Nottingham Forest were compounded by the shock exit of sporting director Dan Ashworth, the Red Devils lifted the mood with a 2-1 Europa League win on Thursday over Viktoria Plzeň.
An error by Andre Onana led to former Burnley striker Matej Vydra putting the hosts ahead early in the second half, but substitute Hoglund quickly equalized before slotting home two minutes from time to secure Amorim's first away win as United manager.
Bruno Fernandes' assist for Rasmus Hoglund's winning goal was the seventh chance he created in this match against Viktoria Plzeň.
But the dominant emotion for the two-goal winner throughout was frustration after being denied the chance to complete a hat-trick in stoppage time when Diallo opted to play alone rather than cross.
On another break moments later, Hoglund chose not to pass to the striker, leading to an altercation at the final whistle that the recently appointed Amorim viewed as a positive.
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“Yes (I was aware of that), and for me, it is perfect,” the United coach said.
“You know, at this moment we need to feel something. If we need to fight each other, it's like a family. For me, it's a very, very good sign. We need to feel something and that's important.”
Rasmus Hoglund contributed to 50% of Manchester United's goals in the Europa League this season
He told the Portuguese that this showed the players' interest: “It's clear.
“When you don't care, you don't do anything. When you care, you fight with your brother, with your father, with your mother. To me, that's a very good sign.
Ruben Amorim tonight became the third Manchester United manager to win his first two matches in a major European tournament in charge of the club, after Matt Busby and Alex Ferguson.
“It's a natural thing. I think it's a positive and healthy thing, so I let the players and the captain calm things down.
“If I see it as too much, I will go into the dressing room. But this is their space, they have to talk and fight, and again, this is something that is very important to me.”
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Robert Earnshaw talks about Manchester United's win over Viktoria Plzeň in the Europa League
Thursday's win saw United take a giant step towards the Europa League knockout stage and boosted their chances of finishing in the top eight, meaning they would go beyond the play-off round.
It was a welcome snapshot ahead of Sunday's trip to struggling rivals Manchester City and another step forward as Amorim attempts to build the team in his image.
No team in the Europa League has earned more points than Manchester United this season (7).
He said: “At this moment, and in this context, the way we give the goal to the opponent, it was important not to give up.”
“This is a great message. It was not a great match, but we managed to do these good things, which is good when you build a team and I think we deserved to win.”
“I'm happy that we won the game and we're still fighting each other. This is a very good thing.
“When you win and you're fighting with your teammate because you want to score another goal, that's a very good day for us, to me.”
