His ankle is likely fine. He's just off form/rusty. And with the technology, sports science knowledge and the quality of physios all top clubs have today, the risk of overcompensation during recovery is really low. There's stuff out there that lets you work out targeted muscles as normal even when injured, so one doesn't have to lose muscular strength. Improved balance and coordination routines and coaches, flexibility specialists, etc. We are in 2025 bro. Lots of athletes are playing at very high levels for much longer than they used to. They're well taken care of.