This has probably already been said, but should we not be alarmed by the fact that Brighton want him? They are usually pretty good judges of character when it comes to incoming transfers.
They, like all teams have misses as well. They have taken a huge risk here, it's a lot of money for a 19yr old CB that has never played in PL, has a known concern re pace.
The data says he will be special, but lets be clear, we have been watching him play way more than Brighton for the last 3+ years, hard to believe they are a better judge of him than us.
Basically the fee, plus sell on, plus buy match clause protects us amazingly well.