Mauricio Pochettino gives explosive press conference after Chelsea penalty spat involving Cole Palmer

Mauricio Pochettino was left 'so upset' after his players argued over a penalty during Chelsea's thrashing of Everton.

Chelsea smashed Everton 6-0 at Stamford Bridge on Monday as Cole Palmer scored a stunning FOUR goals.

He broke an incredible record as he now has 20 Premier League goals to his name - the same tally as Manchester City goal-machine Erling Haaland.

But Chelsea's victory over Everton was marred by an ugly second-half incident between the likes of Palmer, Noni Madueke and Nicolas Jackson.

Palmer won a penalty for his side, with Madueke immediately retrieving the ball. Jackson then got involved in a 'pathetic' moment.

Unseen footage involving the Chelsea trio shows exactly what happened as Pochettino made his feelings clear following the result.

The Argentine raged about the incident and issued an apology to the Chelsea fans.

He also said the players know Palmer is the club's No.1 penalty-taker as he bemoaned the behaviour of some of his players.

"The players know, the club knows that Palmer is the penalty-taker," said Pochettino. "I’m so, so upset about the situation. In every country people are watching the game and we cannot send this type of image.

"I want to apologise to our fans. Discipline is the most important thing for the team. It’s a collective sport. I’m not going to accept this type of behaviour. I’m going to be very strong. I promise it’s not going to happen again.

"It is a shame. We cannot behave in this way, I told them 'this is the last time of this behaviour'."

The Blues boss added: "It is impossible to have this type of behaviour after this performance. If we want to be a great team, we need to change and think in a collective way.

"It’s a process for a young team who need to learn a lot. I was talking about this to the players after the game. It’s the last time I want to see something like this. I want to apologise to the fans.

"We need to make clear next time that happens. They need to learn and be professional. We need to be focused on the collective. They knew it was Cole. Cole is the taker. It’s a clear example that it’s a process we still need to learn."