It took just minutes for Thomas Tuchel to lose his cool with Ben Chilwell during Chelsea's clash against Aston Villa.
The Blues are taking on Dean Smith's men at Stamford Bridge in the Carabao Cup.
It is a competition that Chelsea have not won since 2015 with Jose Mourinho in charge and have usually used the cup to switch out their more illustrious names for fringe players.
But Tuchel has packed in a number of superstars in his mix of youngsters, including N'Golo Kante, Timo Werner and Hakim Ziyech.
Another to be given a rare start is Chilwell, in the line-up for the first time this season with Marcos Alonso keeping him out.
It has surprised many fans, who rated the England international as one of the club's best players last season while he also failed to turn out for the Three Lions at Euro 2020.
The left-back looks like he has lost the trust of Tuchel and that appeared evident on Wednesday night just minutes into Chelsea's match against Aston Villa.
A misplaced pass from the former Leicester star saw the German coach lose his rag, screaming at him from the touchline, according to Football London .
It could spell danger for Chilwell, who has fallen behind Alonso in the pecking order.
What also goes against the 24-year-old is Tuchel's tactical system, which means Chelsea play with wing-backs rather than a back-four.
Chilwell is more of a traditional full-back in that sense whereas Alonso is a specialist in the wing-back role.
The defender has had a tough start to the season but Tuchel was optimistic over his chances over the course of the campaign just last week.
"Yes, that has absolutely been difficult for him, and I think it's pretty normal," he said, when asked if the England spurn over the summer has affected Chilwell's mood.
"He came from a Champions League win, 90 minutes, a strong performance and a good end to the season in general.
"He played a lot of minutes for us in many important games, at a high level.
"Then it was individually for him a tough Euros, because there were chances where he thought he could have played.
"I know it was a tough one, because you feel a part of the team, but you don't feel it really if you don't sweat it out on the pitch and if you never wear the shirt.
"It's a strange feeling, also to keep training for four or five weeks continuously.
"He had a break and it was hard for him to totally relax and get this disappointment off his shoulders. When he arrived here, I felt him a bit mentally tired, still worrying about the situation.
"At the same time, he was very unlucky because Marcos was here the whole pre-season and he took this opportunity with such a huge quality and attitude. Marcos was crucial for us from the first day in training and then he delivered in Chilly's position."
