Manchester City manager Manuel Pellegrini says he is concerned by the form of his offensive department.
The Citizens crashed out of the FA cup after a shock home defeat against Middlesbrough and the Chilean admits that the lack of goals is a worry ahead of Saturday's key game at Stamford Bridge against leaders Chelsea.
"We had six or seven clear chances to score – we played well in the first-half," Pellegrini said.
"After they scored, we were disordered, they had a counter attack and they scored again late on.
"Before they scored, we did well – after that, I think Middlesbrough deserve to continue in the cup as they played very well.
"It's a strange game to analyse – there were two games in one.
"I am concerned, not because of the Chelsea [game coming up] but because we didn't score in our last two home games.
"We conceded two goals in four of our last five home games – we need to recover our performances, both attacking and defending.
"The problem is we've had to change our style of play – we had no strikers for a month.
"After that, they're coming back and maybe they needed time to reach their best performances but we have to retain the way we normally play.
"We will start working towards the Chelsea game now… we have no problem with motivation."
Chelsea also crashed out of the competition but will be determined to open an eight-point lead at the top of the English Premier League when they host Pellegrini's men next week.