The mood travelling to Stamford Bridge was an unusual one. Plenty of Chelsea supporters were almost fearful of Arsenal - and they were right to be.
It's strange. Chelsea haven't really been concerned about their London rivals in recent seasons, despite their poor recent form against the Gunners. But going into Sunday's early kick-off, there wasn’t a great deal of optimism among the fan base.
Apart from one supporter. A little boy, around four or five-years-old – to guess – started chanting "Arsenal get battered everywhere they go" at a tube station on the way to Stamford Bridge. The chant got some laughter from both Chelsea and Arsenal fans on their way to the game. His father turned to him and said: "You won’t be saying that in two hours' time". Unfortunately, the father was right.