Pep Guardiola has refused to be drawn into suggestions the title race between Manchester City and Liverpool could be decided by trips to Old Trafford.
Manchester United may be out of contention for the Premier League crown this season but they could still have a big influence in the outcome of the battle between their two fiercest rivals.
United will host current leaders Liverpool on February 24 while City are scheduled to cross town to their neighbours on March 16.
Asked at a press conference if he would welcome a favour from Ole Gunnar Solskjaer's side in the first of those key fixtures, City boss Guardiola was coy.
He said: "If Liverpool are in front two or three points going to Old Trafford and United are 10 or 12 points behind us, what do you think I am going to think the day before that game?
"But I don't know. We have to go to Old Trafford too and try to win there. If United beat Liverpool - perfect - but if United beat us the situation is the same.
"We can do what we can do against United (but) Liverpool - zero, nothing. I don't have the telephone number for Solskjaer!
"What we can do is beat United when we go there. It is a big mistake to think about that when you want to compete in all the competitions and focus on what we have to do.
"Before United-Liverpool I'll tell you more clearly but there are many games for both sides before those games."
