By Nick Teale
Only one team has scored more goals than Premier League leaders Chelsea this season, and that is Arsenal.
Carlo Ancelotti's side have won 11 of their 13 top-flight games so far in this campaign, conceding just eight goals. It's been an impressive start for the Stamford Bridge side, as Kensington and Chelsea News reporter Dan Levene explains.
THE STORY SO FAR
"It has been a better start to the season than most Chelsea fans could have hoped for. Being top of their Champions League group, top of the League and fairly clear at the top of both is quite an incredible start, especially given the changes there has been recently. The key to the success has been the continuity between Guus Hiddink [who took charge on an interim basis at the end of last season] and Ancelotti. There was quite clearly communication between the two of them at the time of the handover."
THE MAN IN CHARGE
"There have been a few minor changes in the way Chelsea play but it has been growth through the existing team rather than bringing in lots of new names. A case of evolution rather than revolution. Ancelotti likes to play with a diamond, or at least that's how he likes to start games. It's quite a fluid diamond and the four players like to move around and it varies at any given point in a game where any one of them will be."
THE ONE TO WATCH
"Didier Drogba is a great player and I think most people will agree he's really on top of his game at the moment. He's scoring goals regularly, he's playing a great all-round game and he's almost impossible to play against sometimes. I would expect he will be a very major part of what Chelsea do on Sunday."
IMPRESSIONS OF ARSENAL
"A trip to Emirates Stadium is always very, very difficult. Arsenal are always a difficult side to play against and just because Chelsea are a few points clear at the top of the table it doesn't mean they will start finding games early. I think it will be a game of attrition, I think you'll see Chelsea building into attacks and it should be a good game. Ancelotti would love to win his first trip to Emirates Stadium with Chelsea and I expect Chelsea to do everything they can to make that happen."
"Chelsea are playing every single game to win. It was a somewhat weaker side that they put out against Porto in midweek and that shows where their concentration is this week. Chelsea are looking good this year. They're certainly looking more organised than they have in recent seasons and that organisation is often the difference between the team who comes first and the team who comes second or third. Things are looking very rosy at the Bridge at the moment. The new manager does seem to be getting the best out of his players."