Merson wrote in the Daily Star: "I only see one winner in the Manchester derby – and that’s Manchester City.
"Carlos Tevez and Sergio Aguero are the best strike pair around right now. Aguero loves playing with Tevez, you can see it. He scores goals when they play together.
"If City win, they will be favourites for the title. It’s still in United’s hands – but if they lose this game they will have thrown it away."