Born on 11 Sept., 2015, Mateo Messi Roccuzzo is the middle brother in the Messi-Roccuzzo clan and the couple's second child. According to Messi, he is the jokester of the group and never passes up an opportunity to tease his dad or brothers, including by cheering for the opposing team. And while he may love to give his dad a hard time — especially when it comes to losing a game — Messi shared in a 2019 interview that Mateo is a softie at heart: "Mateo is very special. He's always doing new things, things that grab your attention."