Jurgen Klopp reportedly attacked Jordan Henderson after Liverpool's 0-0 draw at Manchester United.
The Reds have returned to the top of the Premier League after the blockage of Old Trafford, but they will feel that two points were lost against a United team with injuries.
Klopp replaced Henderson in the 72nd and the pair appeared to be involved in a passionate exchange on the bench.
However, the Sun claims that Klopp had trouble with his players in the locker room after the match and was unhappy with Henderson's reaction after being dragged.
Sadio Mane was also shot while Liverpool opened fire on Ole Gunnar Solskjaer.
Liverpool had seven points ahead of Manchester City earlier this year, but now only one separates the two teams before the last 11 games.
He says that he remains calm in the face of his team's situation as he embarks on another big week that ends with the Merseyside derby at Goodison Park.
"Yes, of course, there is pressure, in fact, from my point of view, it's a very positive pressure, but I do not have to play, I'm sitting here to say nonsense, then it's easy, "said the German. .
"We must all learn in these situations, the only way to do it is with passion.This club, the heart and soul of this club, is the passion.
"Wednesday night, we have another chance (at home against Watford) and then there is the derby, which is still a very emotional match and so, again, passion.
"I understand that there have been too many draws in the last two games, but we are still where we are, continue."
"People can say" Man City is better ", but we do not compare to that, because we have to get points in our own way.
"There are different ways to succeed and so far we have succeeded, it's 100% true.
"We know where we are coming from and where we are at. Now, make sure we use the situation in the best way possible, then we will see that it ends for us."