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international break as an opportunity to try and solve it, but the boss admits that his participation is also in question.However their last three encounters have offered shoots of hope. Brighton were beaten in the League Cup before quickfire goals from Mykhailo Mudryk and Armando Broja won the derby against Fulham. The Blues then recovered from a goal down to thump Burnley 4-1 last time out, as they look to string three Premier League wins together for the first time in over a year.

What the managers say

Arteta: "It’s a big game and we know that there is a big history between the two clubs and the type of games we have played against them. It’s a very different one I think.

"This season, I’ve been really impressed by Chelsea, they deserve much more than what they’ve got on the table. I think what Mauricio has done in such a short time is phenomenal and we’re going to have to be at our best." - read everything from Mikel's pre-match press conference

Mauricio Pochettino of Chelsea

Pochettino: "I prefer the tough fixtures. I think we need to win tomorrow. We respect Arsenal, they're a great team and you know very well that Mikel is part of my family.

"From day one when he arrived at Paris, we arrived together, we spent time together, with our families also – first of all in the hotel for the first few months and then we lived very close. It was an amazing history and for me, it hasn't surprised me what he is doing because he was a coach already when he was 17, he really was.

"He was a coach and trust me, he was really, really good with his judgement, how he saw football. It has not surprised me, he's still really young and improving day by day. He can become one of the greatest managers in the world."

Talking tactics

Raheem Sterling celebrates scoring for Chelsea against Burnley

Adrian Clarke: Having started with 3-4-2-1 and 4-2-3-1 formations, Mauricio Pochettino has landed upon a standard 4-3-3 shape after experimenting with Enzo Fernandez as a No.10. In this set-up he deploys Raheem Sterling and Cole Palmer very wide with a strong central midfield trio of Moises Caicedo, Conor Gallagher and Fernandez inside them. 

Chelsea want to hog the ball. Showing patience, the west Londoners are making 60 extra passes per match compared to last term, meaning they are second only to Manchester City for their highest average share of possession (63.5 per cent). 

Fernandez is their chief playmaker. The World Cup winner and record signing has made 318 successful passes inside the opposition half, and the highest number of successful long passes in the division so far.