Pep Guardiola hailed the mentality of his Manchester City side after they hit back to secure a 3-2 victory at Swansea City and reach the semi-finals of the FA Cup.
The Citizens were 2-0 behind at half-time at the Liberty Stadium, before they launched a stirring comeback, with a Bernardo Silva drive and an own goal drawing them level, before Sergio Aguero headed in what proved to be the winner.
And Guardiola was delighted to see such a strong response from his players, with City still in the hunt for a possible quadruple this season.
He told BBC Sport: "Fighting for everything is the most important thing for the club.
"People say we are going to win three or four titles and the day we drop one competition they say it's a big failure for Manchester City.
"The most incredible thing after what we achieved last season, is in this stage we are fighting for everything.
"So, most important for the club – more than winning one title – is having the mentality to be there until the end and fight for the titles in this stage of the season.
"That's important because for the future, for the new players and managers who are coming, they will learn from this group of players, and this group of people – that we never give up and fight for every single game and title until the end.
"That is the best lesson."
The Citizens can be backed at 2/5 to lift the FA Cup this season, while they are 4/11 to retain their Premier League title and 2/1 to triumph in the Champions League for the first time in their history.
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