For a young and talented player like Gavi, This kind of injury is a major setback. He injured the anterior cruciate ligament and the lateral meniscus of his right leg. This injury will require surgery and is expected to keep him out for several months. This doesnt only affect his ability but also affects his mentality.
The injury occurred during a training session and is the most serious injury that Gavi has ever suffered. it's not easy to recover from injury like this, especially for young players. he will need to rebuild his rhythm and instinct, and it will take time. Gavi's injury is also a major setback to Barcelona, who are already struggling with a number of injuries. Xavi Hernández will need to make some difficult decisions due to Gavi's absence, but I think he just need to wait for already injured players to comeback. He wont be able to afford to spend more money that can cause their future plan hard to execute with their current financial problem.
Most crucial injured exactly for Gavi still on the young age and he must absent for longer time not only miss all matches in this season with Barcelona he has potential will absent on UEFA Euro 2024 in Germany with his national team Spain. I think this crucial injury will effect for his mentality exactly still on the young age can't manage well with mentality facto for the future, I don't sure when recovery from injury will Gavi keep on the level performance or his performance will drop such as many top player difficult for adapting to the top performance after recovering from injury.
However with Gavi long term injury, Barcelona have good news because they will earn much compensation of up to 7.5 million euros regarding with Gavi will absent more than one year. Its balance well or not with Barcelona have loss Gavi until the end of this season but on other side they will earn much compensation from FIFA.