Manchester City manager Roberto Mancini bemoaned his side's inefficiency in front of goal after slumping out of Europe with defeat at Borussia Dortmund.
City could not even secure the consolation of a place in the Europa League as they slipped to a 1-0 defeat at the Westfalenstadion in their final UEFA Champions League Group D game.
Mancini felt his team gave their best but paid the price for failing to convert chances, a problem he feels is growing.
Mancini said: "The big problem is that to win games you need to score.
"If not, you lose or the game finishes 0-0. At the moment we are not scoring a lot of goals, as we did last year.
"When we get chances we need to score - we need to resolve this problem if we are going to win."
City entered the competition with high hopes but have finished bottom of their group with just three points, the worst showing by an English side in the competition.
Mancini claims he is not embarrassed by the poor return or by the failure to win a place in the Europa League.
He said: "It can be embarrassing if, when you play, you don't play at 100 per cent.
"But when you do play 100 per cent, you can lose.
"We wanted to try to get in the Europa League because that would have been another competition for us to try to win."