Theo Hernandez is a Spanish professional footballer who plays as a midfielder for Serie A club Lazio and the Spain national team. He has also represented the Spain U21 national team. Born on August 4, 1996, in Santander, he began his career with Real Madrid B before joining Atlético Madrid, where he played for three seasons.

In January 2020, Hernandez signed for AC Milan, becoming the first Spaniard to play in Serie A. After making his debut for the club in a friendly against Sampdoria in July 2020, Hernandez quickly established himself as one of the most promising young players in Italy.

In his first season at the club, Hernandez scored two goals in 18 appearances, helping AC Milan reach the UEFA Champions League semi-finals after losing the final match against FC Barcelona. In total, he scored 15 goals in 77 appearances for the club.

However, Hernandez's performance did not go unnoticed by AC Milan management. The club decided to sign him permanently from Atlético Madrid in June 2021. In January 2022, Hernandez joined Lazio on a five-year contract.

As a player, Hernandez is known for his technical skills, quick feet, and ability to read the game. He is a versatile player who can play in various positions, including midfield, defense, or even as a striker. He is also highly regarded for his leadership qualities and his commitment to the team.

Despite his success at AC Milan, Hernandez has faced criticism for his behavior off the pitch. During his time at the club, he was involved in several controversies, including a dispute with manager Carlo Ancelotti over his treatment of a teammate during a training session. However, he has since apologized for any hurtful comments made and has continued to support the club and its fans.

Overall, Theo Hernandez has been a valuable addition to AC Milan and has become a key player for the team. His performances have helped the club achieve success in recent years and have earned him widespread recognition both on and off the pitch.