Manchester United versus Arsenal has always been one of the handful of fixtures that neutrals look forward to.
However Sunday's clash between the two Premier League heavyweights is going to be completely different this season, as it will be the first time David Moyes manages a Manchester United side against Arsenal.
Seeing Sir Alex Ferguson's psychological battles with Arsene Wenger took some of the attention away from the players, but now the main focus has switched back to the players.
Here we take a look at where Sunday's encounter will be won and lost.
Who do you think will win each personal battle?