Messi posted the message on his official Instagram account accompanied with pictures of both players while on duty for the Argentine National team. Both players won the Copa America against rivals Brazil in July 2021.
Pretty much a whole race together. We lived very nice moments and others that weren’t so much, all of them made us more and more united and more friends. And we will continue to live them together off the court. With the great joy of lifting the Copa America so little ago, with all the achievements you achieved in England. And that truth now it hurts a lot to see how you have to stop doing what you love the most because of what happened to you. I am sure you will continue to be happy because you are a person who transmits happiness and those who love you will be with you. Now a new phase of your life starts and I am convinced that you are going to live it with a smile and with all the illusion that you put into everything. All the best in this new stage!!! I love you so much my friend; I am going to miss being with you inside the court and when we get together with the National team.
Aguero was substituted in a La Liga game between Barcelona and Alaves in October 2021. The 33-year-old felt a pain in his chest while the game was going on, but health workers at the club were able to keep him calm before he was taken to the hospital.