Manchester United's forwards Rasmus Hojlund and Amad were seen arguing at the end of the 2-1 win over Viktoria Plzen.
The young guns were caught in a heated argument after the game, with both players blaming the other for missing a golden chance to seal the victory.
But their manager, former Sporting Lisbon boss Ruben Amorim, insisted the bust-up was a good thing.
"Yes, and for me it’s perfect, we need to feel something," Amorim said. "In 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."
Amorim added: "When you don’t care, you don’t do nothing. When you care, you fight with your brother, with your father, with your mother. It’s a normal thing, it’s a positive thing, a healthy thing."
The Portuguese boss believes the fiery exchange shows that both players are desperate to succeed and that they care deeply about the team.
United's dramatic late win has put them in a strong position to qualify for the knockout stages of the Europa League.
Ahead of a tense clash against Viktoria Plzen, United's manager wasn't afraid to make bold decisions.
Observing a lacklustre performance from Marcus Rashford, Amorim subbed him off.
Tough call
The game against Plzen was a must-win encounter for The Red Devils who were initially trailing.
However, rather than sticking with his conventional lineup, Amorim made changes to the squad.
The surprising change when he substituted Rashford without a word of explanation or assurance, plainly showing dissatisfaction with the striker's performance.
Fans react
Amorim's decision provoked mixed-emotions among United fans. Some expressed that "Amorim needs to start being more ruthless with his team selections".
Others worried that Rashford might not fit into Amorim's future play style or formations.
A tough victory for United
The changes were success and United earned three points in the Europa league match.
Antony did well when he came on and Rasmus Hojlund got both goals. This shines light on Amorim's uncompromising and bold approach to coaching under pressure.
His decision to sub off Rashford is likely to continue creating waves in the upcoming games.