Diego Costa somehow managed to stay on the pitch after slapping Koscielny and scratching Gabriel during Arsenal's 2-0 loss to Chelsea. Watch the incidents here

Arsenal will be looking to open up a nine point advantage over Chelsea when we face them at Stamford Bridge this lunch-time. Here are the line-ups for the game:

Barcelona are eyeing a surprise January swoop for Arsenal forward Theo Walcott after Rafinha was ruled out for the rest of the season through injury, according to Mundo Deportivo.

Check out this interesting infographic which provides useful statistics ahead of Arsenal's huge Premier League game against Chelsea at Stamford Bridge.

Here's a round-up of all the latest Arsenal team and injury news ahead of our clash with Chelsea at Stamford Bridge on Saturday afternoon.

There was no sign of Per Mertesacker in training today as Arsenal made their final preparations ahead of tomorrow's trip to Chelsea. See the photos here

Arsenal take on Premier League champions Chelsea at Stamford Bridge tomorrow lunch-time. Here is a preview with team news and predicted score

Wenger has confirmed Hector Bellerin and Aaron Ramsey will return to the squad to face Chelsea while Jack Wilshere is set to undergo his surgery next week.

Arsene Wenger has confirmed that Per Mertesacker is expected to miss tomorrow's Premier League clash at Chelsea after failing to recover from a virus in time

Here we'll take a look at the different types of supplements Arsenal players use following the arrival of Arsene Wenger as manager back in 1996.