Chelsea news: Merson has demanded Maurizio Sarri makes a big tactical change

That is the opinion of Sky Sports pundit, Arsenal hero and Chelsea fan Paul Merson. Merson says Sarri must copy the approach of former Blues boss Antonio Conte. Conte switched to playing three at the back after a 3-0 loss at Arsenal in his first season in charge. Chelsea went on to win the Premier League and Merson says that is the way Sarri must now go.

I’d fly straight back to a three at the back. They aren’t good enough to play two at the back Paul Merson on Chelsea

Asked if Sarri should be worried about the defence after the 3-2 win over Arsenal, Merson said: “Majorly, you’d hope he is (worried). “Sometimes you can win a big football match like that against one of the top teams, Arsenal are a top-six team, and he can cover over the cracks. “You look at all the positives and you get away from the negatives - you have to look at the negatives there. “The defending there, they will struggle this season badly. These were clear-cut chances, they could have got ripped seven, they could have got ripped seven.

Chelsea news: Paul Merson wants Maurizio Sarri to play with three at the back

Chelsea news: Antonio Conte preferred playing with three at the back at Chelsea

“The first worrying thing is they’re 2-0 up at home against a team who were on the floor, and before you know it it’s 2-2. “Really Arsenal should have probably gone into half time winning, that was worrying. “This manager is an experienced manager so you hope he looks at the negatives and don’t look at it and go ‘we just beat one of the top-six teams at home and we’re flying along’. “I would be worried, for me I’d fly straight back to a three at the back. They aren’t good enough to play two at the back.

Chelsea news: Antonio Conte had success with his preferred formation