Manchester City manager Manuel Pellegrini says he's worried about his side's form after their defence of the Capital one cup came to an end.

The holders are out of the competition after a surprise 2-0 defeat to Newcastle in the last-16.

City are without a win in three games in all competitions and face rivals Manchester United on Sunday.

Having lost against West Ham in their last Premier League outing, Pellegrini’s men welcome their neighbours to the Etihad hoping to return to winning ways.