Even at this early stage, the game will be discussed as a potentially decisive in the title race. Sir Alex doesn't think it's as cut and dry as that, but there is a marked difference between going top or being five points behind Chelsea come Sunday evening.
"It doesn't come into my thinking that it is a league decider," Ferguson told manutd.com. "But it could be an important game. Towards the end of the season, you might think, 'I'm glad we got a result at Chelsea'. But it's difficult to pinpoint the importance of Sunday in relation to where we'll be in May."