Proud captain Mike van der Hoorn felt Swansea City had shown the wider world exactly what they are capable of after pushing Manchester City close at the Liberty Stadium.
The Swans produced an excellent performance against the reigning Premier League champions and had looked to be set to end the visitors' dreams of a quadruple when they led 2-0 thanks to goals from Matt Grimes and Bersant Celina.
But Pep Guardiola's men produced a late fightback to prevail 3-2 victors and advance to the semi-finals of the FA Cup.
Few had given the Swans any hope of beating the all-conquering Citizens, who had put seven past Bundesliga side Schalke in the Champions League in midweek.
But their display was enough to earn warm praise from Manchester City boss Guardiola, and Van der Hoorn believes the display from Graham Potter's men is one which will make a few people sit up and take notice.
And the Dutchman was pleased to see his side rewarded for their good play by taking their chances in front of goal, following the frustration of league defeats at Norwich and West Brom.
"I am very proud, everyone played really well and fought really hard," he said.
"We gave our all, and the belief of the guys to play like that against the title holders was amazing in that first half.
"We scored a good goal, we played out from the back and you can see that we can play football.
"We were also really close to every opponent (defensively), there were good tackles and no-one was scared of anybody and that is good because for a lot of guys this was their first game against City, against these top players.
"You are proud that we showed we are on a good route to achieve something, it may not be this year, but we need to progress,
"Against Norwich and West Brom we played well without finishing, but if you do that you can be 2-0 up against a top team like Manchester City."