Manchester United boss David Moyes admits their humbling at Manchester City may not be a one off.

The ex-Everton manager had a difficult experience in his first Manchester derby, something that could not be said for fellow debutant, his opposite number Manuel Pellegrini.

City brought in several more players than United in the summer, but after a manager as influential as Sir Alex Ferguson left, Moyes is adamant his side are in a transitional period.

He said: "You have days like we did on Sunday and there might be more because we are in a period where there will be transition."