Surely Rocky fighting new kid on the block Clubber Lang is a more appropriate analogy due to City's recent rise? Or maybe Rocky 5 when the youngster (City) takes on the veteran (United)? Maybe it will all turn out like Rocky 2 and United and City will eventually have a healthy respect for each other. Or maybe it will go the way of Rocky Balboa and the participants will start taking a large amount of steriods.
h/t 101greatgoals