Manchester City boss Manuel Pellegrini admits David Moyes' tinkering means he has no idea who will line up for Manchester United tonight.
The United manager's options ahead of the derby have been limited by injuries to Nemanja Vidic and Robin van Persie.
But the City manager insists he's still the dark over how United will line-up at Old Trafford on Tuesday.
Pellegrini said: "I really don't know which team will start against us because they changed the team in the last three games.
"I don't know which players will play."
