In 2022, Alvarez joined Manchester City, and a few months later he won the World Cup championship with the Argentina national team. In an interview, Alvarez revealed that Guardiola had predicted that Argentina would win the World Cup.
Alvarez said: "Yes, it's true. I remember that I just joined Manchester City, and they were there. This includes Bernardo Silva, Ruben Dias, Cancelo from Portugal, Ederson was there, and Rodri. We were all talking about the World Cup, and I didn't speak because I just joined."
"I'm a pretty quiet person. Since I came to Manchester City, they've been talking about which national team is strong and what kind of topics are like. Guardiola said: 'Say that, the person who doesn't say a word will be the World Cup champion.' Then he pointed at me."