Chelsea boss Andre Villas-Boas admits beating Manchester United on Sunday will not matter if they cannot find consistency.

Villas-Boas insisted a victory on Sunday would mean as little as December's triumph over City if they failed to build on it.

He said of the consequences of a win: "Good maybe in the immediate (sense) but maybe a false message regarding the future. The future has to be continuity.

"After Man City, we went to seven points behind and we didn't find that continuity that would've taken us closer to the leaders.

"So it can have an extra importance only if you manage to get the continuity after that."