The Manchester derby is on Sunday and it's a game that will really put the season into perspective for both sides.
City will line up at the Etihad Stadium as a team that remains strong favourites for the Premier League, although one that any complacency against United will likely be punished.
The same fixture last season was a notable one in that City knew they could officially wrap up the title with a win - only to blow a two-goal lead and lose 3-2.
And so while City will head into the game wanting to show that their complacency is a thing of the past, United will know full well that there's the opportunity for a real statement.
Jose Mourinho appears to have rediscovered United's talent for late turnarounds - three games in their last six have seen winners in the last few minutes - and things are slowly getting back on track.
But nothing would boost the positivity and hope at Old Trafford quite like a win at the Etihad; beating City on their own patch could finally jumpstart their season.
That's easier said than done, of course, and Mourinho's team selection will play an enormous part in proceedings.
It will be a very difficult one for the United boss but former Old Trafford man Darren Fletcher believes one player should definitely start: Ander Herrera.
"United have to try to stop [David] Silva somehow," Fletcher told the BBC. "And for them to do that, I think Ander Herrera has to play."
Fletcher speaks very highly of Herrera, feeling that he brings a discipline to the side that very few players have.
"Having been in the United dressing room with him, he is one of those players who remembers everything the manager says, and is constantly reiterating those points to the rest of the team," said Fletcher.
"Not every player does that, because some of them are so tied up in the game themselves, but Herrera does not just remember his role, he remembers other people's too.
"He is that influential to the whole team, plus he is aggressive and he can set a tempo for United when they get the ball back.
"I like him and I would have him in the team. He could go up against Silva and make it a difficult game for him, which does not happen very often."
Mourinho has certainly used Herrera to try and stop opposition playmakers before and if the boss is on the same wavelength as Fletcher, we'll see the Spaniard play a vital role on Sunday.