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• 'When we are bad, we are so bad' – Pochettino slams inconsistent Chelsea after Arsenal rout

  Mauricio Pochettino slammed Chelsea's lack of consistency after they were thrashed 5-0 by Arsenal on Tuesday, saying: "When we have bad days, we are so bad." 

  Chelsea travelled to the Emirates Stadium looking to close the gap to the Premier League's top seven, but instead saw their European hopes further dented by a chastening 5-0 defeat. 

  The defeat was Chelsea's heaviest ever against the Gunners in all competitions, and their worst in a London derby since they lost 6-0 to Queens Park Rangers in March 1986.

  The fact that dismal performance came just three days after Chelsea pushed Manchester City close in the teams' FA Cup semi-final only served to rile Pochettino.

  "We are showing this inconsistency and that is why we are where we are," Pochettino said.

  "We are able to have an amazing performance and then one like this. When we have bad days, we are so bad. It's difficult to talk. We were talking in the same way after last season.

  "We put in a fantastic performance at Wembley and then today, you can lose a game at Arsenal but in the way we competed… why one day, three days ago and then today in this way?"

  Chelsea have now conceded 57 goals in the Premier League this season, their outright most in a single campaign in the competition, having previously shipped 55 in both 1994-95 and 1996-97.

  In attack, they managed just one shot on target in the absence of Cole Palmer, with the Premier League's joint-leading goalscorer missing out due to illness.

  Asked about the impact of losing Palmer, Pochettino added: "It wasn't the reason we lost the game, but you lose such a creative player that helps to play in the lines. 

  "It's difficult to lose players in these circumstances – that made the management very difficult. But today was more than that.

  "We didn't compete from the beginning and it was difficult to be in the game against a team fighting for the Premier League. It's no coincidence. 

  "We need to compete in a different way but we are talking too much. We want to be in a different position next season. We need to take decisions."

• Title-chasing PSG ready for tough game at Lorient, says boss Luis Enrique

  Paris Saint-Germain could secure their third straight Ligue 1 title if they defeat Lorient and Monaco fail to beat Lille – but Luis Enrique is not expecting his struggling opponents to hand them any favours.

  If Monaco draw or lose against Lille on Wednesday and PSG win away at 17th-placed Lorient, the Parisians would clinch their record 12th league title.

  Luis Enrique's side have an 11-point lead over second-placed Monaco with five matches remaining, and a far superior goal difference having lost just one game.

  "It's going to be a very difficult game," Enrique told reporters on Tuesday. "When you're at the bottom of the table, you don't have much to lose.

  "Generally, teams at the bottom of the table manage to get unexpected results at the end of the season.

  "There's a lot at stake. The possibility of being crowned champions is enough to make you pay attention."

  The former Barcelona boss, who moved to the French capital last July, is chasing a possible quadruple after PSG booked a Champions League semi-final berth and a spot in the Coupe de France final. PSG secured the Trophee des Champions title in January.

  "It motivates us but for the moment, we only have one title, we have to win the league and keep fighting to win it all. It's a long and winding road ahead," Luis Enrique said.

  Luis Enrique once again declined to comment on the future of Kylian Mbappe, Ligue 1's highest scorer for the last five seasons.

  France captain Mbappe, 25, has been heavily linked with a move to Spanish giants Real Madrid.

  PSG, formed in 1970 via the merger of Paris Football Club and Stade Saint-Germain, have won nine of the last 11 Ligue 1 titles.

  Mbappe's frustration lies with their performances in the Champions League, however, a trophy they have never lifted despite huge amounts of investment in the squad.

  "When Kylian speaks in public, I'll do the same," Luis Enrique said.

• Mikel Arteta salutes ‘unbelievable’ Kai Havertz after another impressive display

  Mikel Arteta hailed an “unbelievable” performance from Kai Havertz after his two goals helped Arsenal move three points clear at the top of the Premier League with a thumping 5-0 win over Chelsea at the Emirates Stadium.

  The 24-year-old, who struggled in his early appearances after swapping Stamford Bridge for north London in the summer, gave a superb display against his former side as the leaders heaped more misery on visiting manager Mauricio Pochettino, who saw his ninth-place team slump to a worst-ever league defeat against Arsenal.

  Havertz struck twice as part of an 18-minute blitz in the second half as Arteta’s team won for the second time in four days, continuing their recovery from successive losses to Aston Villa and Bayern Munich.

  “He (Havertz) was unbelievable, in all departments,” said Arteta.

  “For a nine to score two goals the way he scored, his contribution was great. It’s a question for him but I’m sure he’s very pleased.”

  The Arsenal onslaught began after only four minutes, Declan Rice sliding the ball into a channel on the left of the penalty area from where Leandro Trossard took over, dinking past defender Alfie Gilchrist, on his first Premier League start, and thudding it through the legs of Djordje Petrovic.

  Thereafter Chelsea competed gamely, going close to equalising when Axel Disasi just failed to reach a flick-on from a corner and again when Nicolas Jackson’s effort was deflected onto the post by Gabriel, but in the space of under 20 minutes after the interval they fell to pieces.

  First, Ben White reacted quickest to sweep home after Rice’s shot was blocked, then Havertz got his first of the night with a lofted finish over the goalkeeper.

  The former Chelsea forward made it 4-0, his shot pinging in off the post with Petrovic rooted, before White provided the moment of the match with a cross-shot that sailed across the face of goal and in from Martin Odegaard’s pass.

  “It was a big performance, collectively and individually,” said Arteta, whose side moved clear at the top ahead of Sunday’s derby against Tottenham but have played a game more than Liverpool and two more than Manchester City.

  “I thought we were really good, against a really good team that was in great form and were going to ask us a lot of questions. I think we responded really well.

  “From the start we were really determined, really flowing, playing with a lot of courage and making things happen. Really happy with the result. It’s a big day for our supporters.

  “It’s great for us, for the confidence and for the belief that we can do it, we can come to these stages against big teams and win games the way we’ve done it tonight. So enjoy it, then it’s back to work tomorrow because we have a big one on Sunday.”

  Chelsea boss Pochettino, for whom Arteta admitted to have “all the sympathy in the world,” gave a downcast assessment of his team’s prospects of qualifying for Europe after a humbling loss.

  “Now it is difficult to see the future because after this game we feel disappointed,” he said. “It is difficult to talk about objectives.

  “If we compete like Saturday (in the FA Cup semi-final defeat to City), OK. But if we compete like today, I think we deserve to go into Europe? I think in this way, no.”