Mauricio Pochettino warned there will be more problems for Chelsea if they fail to build on their 3-2 victory over Newcastle at Stamford Bridge as he praised the impact of match-winning substitute Mykhailo Mudryk.

The Ukrainian came off the bench to score with a superb individual goal to make it 3-1 in the 76th minute, pelting on to the ball at full tilt before tricking his way beyond a dumbfounded Fabian Schar and nipping round Martin Dubravka to finish.

“It was a very good goal and that is what we expect from a player from the bench – impact,” said Pochettino. “Then it is about competing with different players in his position. Then he will deserve to (start).”

The goal helped settle a finely balanced game, the kind that has so often slipped away from Chelsea under Pochettino.

They had already allowed an advantage to get away from them on the stroke of half-time.

Leading 1-0, Chelsea made two errors to hand Newcastle a way back into the match. First, the otherwise impressive Malo Gusto was caught trying to juggle the ball in midfield, then Trevoh Chalobah rushed up from central defence to assist and left a gaping hole into which Alexander Isak darted and rifled the visitors level.

Earlier, Nicolas Jackson had given his team a deserved sixth-minute lead, applying the deftest touch with his heel to Cole Palmer’s strike, getting just enough contact to divert it out of the reach of Dubravka and into the bottom corner.

Palmer, brilliant again on the right of a forward three, scored a 13th goal of his debut Chelsea season early in the second half.

Enzo Fernandez spotted the Blues’ top-scorer in space and gave the ball to him with his back to goal. With his first touch Palmer turned and with his second he lashed a shot inside the near post for 2-1.

Then came Mudryk’s decisive moment of magic and, although Jacob Ramsey gave Chelsea a scare with a cracking late drive from range, Pochettino’s young side clung on.

“We need to understand that we are Chelsea,” said Pochettino. “We are in a project that is completely different (to the past). Some people might be confused. When people don’t want to listen, it’s difficult.

“But we are trying to explain we are a different Chelsea, we are building something different. It’s going to be tough.

“We need to keep believing, even when it’s tough circumstances. We played (the Carabao Cup) final, 120 minutes, then after three days we play the FA Cup and we play Brentford. In six days we played three very tough games, nearly with the same team.

“It was really tough. If that means we are a disaster, OK. The most important thing is it’s not affecting the team. They know what they need to do and we keep believing.

“The win today is important for our fans to be a little bit more calm. But I think if we don’t win our next game, it’s going to be again a problem. That is Chelsea.”

Newcastle boss Eddie Howe reflected on a match that had been there for the taking before Mudryk’s late strike.

“I thought it was a game in the balance and an open game,” he said. “The game got away from us with the goals we conceded which were really poor from our perspective – they were self-induced.

“Wherever you play you have to pride yourself on being tight and I don’t think Chelsea had an abundance of chances tonight.

“But the way the goals came from our perspective is hugely frustrating as we know the details have to get better.”

Malo Gusto believes Mauricio Pochettino is “waking up” a winning mentality in Chelsea’s young squad as they prepare for Sunday’s Carabao Cup final.

The Argentinian’s resurgent team face Liverpool at Wembley looking to claim the club’s first silverware since co-owner Todd Boehly took over in May 2022.

In that time there has been an almost total overhaul of personnel both on the pitch and behind the scenes, with over £1billion spent on assembling a team with the youngest average age in the Premier League.

After a slow start there was been notable improvement in recent weeks, culminating in a fine performance in ending champions Manchester City’s winning run at home with a 1-1 draw on Saturday.

However, Pochettino and his players are yet to convince everyone. The team were booed off by fans following their last home game, a 4-2 defeat to Wolves at Stamford Bridge, with supporters’ frustrations also being directed at the manager personally.

Sunday’s final could be a key indicator as to whether a corner has truly been turned following the City draw and impressive wins away at Aston Villa and Crystal Palace.

And defender Gusto – a key figure during the recent upturn in results, deputising at right-back for injured captain and England international Reece James – praised his manager for working to instil a winning attitude.

“He (Pochettino) is here for this,” said the 20-year-old. “He knows he has to wake up our mentality, to wake up our desire to win everything. We are Chelsea and a big club like Chelsea has to win everything, to keep fighting.

“He helps us a lot. He has tried to show us the desire to win, to keep fighting against every team. He talks to us a lot about tactics, technique and everything.

“He is a good person as well. He tries to help us a lot on the pitch and off it as well. He is a good coach for this young team.”

Gusto has been one of the outstanding performers of Chelsea’s recent recruits.

Signed from Lyon for £30.7million in January 2023, he was loaned back to the Ligue 1 side for remainder of last season before making his mark during the current campaign.

He has made 24 appearances in all competitions, after a recurring hamstring injury limited James to just nine.

A forward player in his youth, he has evolved into an effective attacking full-back and he has made four assists in the league, most recently setting up Conor Gallagher’s equaliser in the 3-1 win at Palace with a pinpoint low cross.

He made his senior debut for France as a substitute in a 2-1 win against the Netherlands in October.

He said he was not daunted by the prospect of dislodging James from the team before signing for Chelsea, adding: “I wasn’t thinking about what could happen. I just wanted to take my chance.

“If I can play, I play. I’ve stayed focus on my football. I work every day to become better, to improve. That’s what I do.

“We are not similar, (James) and me. He’s a bit different, but when we are on the pitch we try to keep a mentality to score and to assist.

“I work for (getting better going forward). I have good cardio, good legs. This is my football. When I was younger, I was the same, running every day. When your team-mates see you run a lot, you want to run a lot with them.”

The defender came in for particular praise for the way he dealt defensively with City’s Jeremy Doku during Saturday’s draw at the Etihad Stadium.

“I came to Chelsea because I wanted to play against great players. I think the game was complicated, but it was good for me to learn.

“(The praise) is nice, but I don’t really care about it, I just want to to become a better person and better player.

“The game against Doku, people talk about it, but it’s just one game. Maybe this weekend I could be s*** and the game after I could be better.”

Mauricio Pochettino puts Chelsea’s ill-discipline down to the close-season change of rules with the Blues leading the Premier League for yellow cards this season.

Chelsea have amassed 47 yellow and three red cards, following the dismissal of Malo Gusto against Aston Villa in September and both Reece James and Conor Gallagher being sent off in their last two games.

Pochettino highlighted how the FA’s new rules in targeting petulance such as kicking the ball away or dissent is the reason behind his team’s poor record.

Speaking ahead of Chelsea’s clash with Manchester United on Wednesday, Pochettino said: “Today we were talking in the meeting and we showed the clips of the yellow cards. There are too many because they changed the rules this season.

“We touch and we put the ball from here to there, and that is a tic that we need to change.

“We were talking about Nicolas Jackson, the yellow card because of complaining to the referee. The opponent made a foul and didn’t receive a yellow card.

“But you complain about ‘why is that not a yellow card?’ And it’s ‘Oh, yellow card for you’. We receive like this.

“It’s difficult to understand this rule but now the referees want to apply it.”

Jackson’s seven bookings are the most in the league and that tally saw him sit out of the Blues’ 2-0 win over west London rivals Fulham in October.

Pochettino called for his players to be cleverer if they are to avoid picking up similar suspensions.

He added: “We need to be clever and improve in this area. We cannot be silly to repeat, repeat, repeat the same mistakes.

“When we play football, always if you made a foul, if the opponent came to take the ball quick, boom, you touch. Even when you play football with your friends, that happens. It’s difficult to change.”

The last time Pochettino faced Manchester United manager Erik ten Hag was when he was in charge of Spurs during their dramatic 3-2 Champions League semi-final victory over the Dutchman’s Ajax in 2019.

And the Chelsea manager noted that the match would have been painful for Ten Hag while it was one of his “best nights in football”.

He said: “Of course it was really painful, the situation, but sometimes when you are a coach there are things you cannot control. This is the beauty of football.

“He wasn’t on the pitch. People make you responsible of course. But you cannot change anything from outside. It was difficult.

“One of my best nights in football. For sure it was tough for him. But we all move on.

“For sure he has moved on and he is at a great club now. It’s going to be nice to meet him.”

Mauricio Pochettino highlighted his respect for Mikel Arteta and believes the Arsenal manager is “one of the best in the world”.

Chelsea boss Pochettino faces off with his former Paris St Germain team-mate for the first time on the touchline when the Blues host Arsenal at Stamford Bridge on Saturday.

And the Argentinian lauded Arteta, who took Arsenal to a second-placed finish last season, and is not surprised by the Gunners boss’ success since becoming a manager in 2019.

“We respect Arsenal, they are a great team,” Pochettino said.

“They have Mikel (Arteta) who is part of my family. It’s going to be tough because they’re doing a great job with a great squad, they are a contender to win everything, the Premier League and the Champions League.

“It does not surprise me with what he’s doing. He’s great, he’s really young, he’s improving every day and he can be one of the greatest managers in the world. I’m going to be proud to see him.

“I think when you are a coach at Arsenal and the team is showing what they are showing it’s because you are one of the best.”

Arsenal failed to finish in the top four during Arteta’s first three seasons prior to their title challenge last season, finishing eighth in both 2019-20 and 2020-21 and fifth the following season.

And Pochettino credited Arsenal for showing their faith in Arteta and highlighted the strong relationship between club and manager which has allowed them to “fight for big things.”

“At the beginning for him it was really tough. For maybe a year it was tough but it was a good thing that they put trust in him,” Pochettino added.

“They gave him all the tools and really believed that he was able to rebuild.

“I think you have to give credit to the club and Mikel because they have created a bond between each other which is really class and now the results after three or four years (have improved) and now at Arsenal they are fighting for big things.”

Right-back Malo Gusto is in contention to start for Chelsea after he served a three-game suspension for a sending-off against Aston Villa.

And Pochettino is happy with the new signing’s progress after he replaced Reece James in the XI after the Chelsea captain picked up a hamstring injury in August.

Pochettino said: “I think he is really young but he is also really talented. Tomorrow he has the possibility to play.

“It is difficult to judge because he is 19 years old and came from France and he needs time to adapt to a club like Chelsea where the history is to win and it’s not just about competing.

“We are happy, we believe in him but give him time because I know he will perform in the way we believe he can.

“He’s going to be good for the club for sure.”

Pochettino said James’ availability will be assessed ahead of Saturday.