Joe Hart has said that Manchester City have forgotten about their shock 6-1 win over rivals Manchester United earlier this season.
The teams face off again this weekend at the Etihad Stadium in the third round of the FA Cup, and the City goalkeeper believes that United will be out for revenge.
"United owe us one, but that's for them to feel," Hart said.
"It's nice for the fans to have those memories and those bragging rights but for the players it has gone and we move on to Sunday for another big game.
"Whatever trophy we are in, we are hunting for it."
City currently enjoy a three-point lead over United at the top of the Premier League.