Arsenal host rivals Tottenham Hotspur in the north London derby on Sunday with all the signs pointing towards an entertaining encounter.
Unai Emery's men are on the rise, courtesy of an 17-game unbeaten streak, while Spurs have solidified their place as title challengers after thumping Chelsea last time out.
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But the pre-match chatter among fans has not focused on a single player, the form book or a specific tactical ploy. Instead, everyone is talking about the referee.
Mike Dean will be the man in the middle at the Emirates Stadium - and Gooners are not happy.
The official has been accused of bias over the years, having previously been spotted 'celebrating' a Spurs goal while on derby duty.
So, are Arsenal fans writing off any hopes of victory now that they know Dean will be in control of proceedings?
Or are Spurs fans worried that things could swing the other way and overcompensation may come into play?
Opinions are split, but one things is certain. Expect Mr. Dean to be the centre of attention.