Manchester City manager Pep Guardiola has urged striker Sergio Aguero to use criticism of his performances for Argentina to grow stronger mentally.
The 28-year-old missed a penalty in Argentina's 1-0 defeat to Paraguay on Tuesday, prompting boos from the stands at the final whistle.
And, having spent a few days with Aguero upon his return to training in Manchester, Guardiola says the frontman is "very well", after having time to reflect on the disappointment of the result against Paraguay.
"Emotionally he's fine, he's very well. But you have to know, we are all criticised," Guardiola told reporters.
"An Argentine in Argentina, a Brazilian in Brazil, a Spaniard in Spain, the players across the world and the managers across the world.
"It can make you stronger, you can put up with it or else you're better find something else to do.
"It's not exclusive to Sergio, it's happening to Leo [Messi] too, with Di Maria. It happens to Dani Alves in Brazil, to Neymar in Brazil, to Raz [Raheem Sterling] in England.
"When you play badly and you lose, they kill you."
Aguero was initially expected to miss the Paraguay clash with an adductor injury, but ultimately played the full 90 minutes.
When asked if Aguero or any of his other international stars were carrying a knock heading into Saturday's clash with Everton, Guardiola revealed he would assess his players closer to kick-off.
"I'm going to see how the internationals are physically, their mentality, their mental approach," he added.. "Some of the players recover quickly, others need more time."