Chelsea boss Enzo Maresca, right, has lost one and drawn one against Mikel Arteta in the Premier League
If second-placed Chelsea beat league leaders Arsenal at Stamford Bridge on Sunday, they will be just three points behind their London rivals.
So can Enzo Maresca's side upset the odds to win the Premier League this season?
Arsenal are on a 16-match unbeaten run as they bid to end their 21-year Premier League title drought, having last lost on 31 August at Liverpool.
However, Chelsea, who have had an extra day's rest after their 3-0 Champions League win at home to Barcelona on Tuesday, are on their own six-game unbeaten run - and feeling confident.
