Roberto Mancini admits Manchester City need something incredible to happen if they are to qualify for the knockout stages of the Champions League.
City have only one point from their first three matches in Group D and anything barring a miracle will see them elimination at the Group stages for the second successive season.
Despite playing all four strikers in Saturday's Premier League trip to West Ham, the defending champions struggled to create any genuine scoring opportunities, leading Mancini to concede his side are 'not ready' to win the Champions League.
"I don't think we are ready to win a Champions League. If say [we are], we are not honest. Chelsea for how many years tried to win the Champions League when they were probably the best team in Europe," Mancini reasoned.
"And they won after 10 years, probably when they didn't deserve. We are not ready to play, to win a Champions League."
Mancini will not give up on qualification until it is a mathematical impossibility, but the Italian admits it will take a miracle for his side to progress.
"If we win the next three games, anything can happen. But, before, it's [an outside chance]. It's clear that, in the Champions League, incredible situations can happen during February, March but we're talking about the group, like last year," he went on.
"We played a very poor game against Borussia [Dortmund] and Ajax we played so-so. Also, [at Ajax], when we were 1-0 we missed two incredible chances to close the game. In the Champions League, if you don't score, the game is open.
"We need to continue to work. The pitch is the same, the players the same, the referees - nothing changes. It's not this. We need to improve, we need to play better, to score when we have a chance."