Kun was elated with his team's penalty shootout semi-final victory over the Netherlands, as was Javier Mascherano who said they now have a once in a lifetime opportunity
The Manchester City striker missed his side’s victories over Switzerland and Belgium after limping out of their final group game against Nigeria with a muscle injury.
But Aguero returned as a late second-half substitute on Wednesday as Argentina beat Netherlands 4-2 on penalties to book a place this weekend’s showdown with Germany and the 26-year-old is ready to put his injury woes behind him for what he describes as a 'dream' World Cup final.
"The truth is incredible. I am so happy, we cannot believe it," he said.
"I suffered from a mini tear, but I have done everything possible to recover. Luckily we are in the final.
"Germany are always a tough team at the World Cup. But we will continue to play our game. Argentina is Argentina. Germany also have a bit of respect for us."
Javier Mascherano also spoke of his pride at making it to the final, labelling his team’s achievement "brilliant", insisting Sunday’s showdown is something they will likely never experience again.
"We played a brilliant game, without any fear of anything," said the Barcelona man.
"We came into the game of our lives. And now we will enjoy it because this is a once line a lifetime opportunity.
"Hopefully we will be crowned champions on Sunday but, regardless of the outcome, I have no words to express how proud I am… the goal was to be in the final."