Yeah read about this, it's a weird one. It's a Spanish rule so doesn't apply in Europe or whatever and they can only buy from teams in the Spanish league so - in one sense - whatever. It seems that if you have a certain number of injuries and can prove that they are long-term enough you can buy an emergency player - but while the rule arguably comes from a good place, the team you buy from could easily be left in the same position of losing their only player in one position but they have no recourse. So it's a very lop-sided rule.This is weird too:
OFFICIAL: La Liga has authorized Barcelona to make an emergency signing to replace Dembele
Apparently it's a rule for every team in La Liga, but it's the first I've heard of it.
His latest goals mean he has reached double figures in the Champions League four games faster than any other player in the competition's history, and is the only teenager to reach double figures in a single season.
In fact, the striker has scored more goals in the Champions League in 2019-20 than the entire Barcelona team, and is the first player in Dortmund's history to score in his first Bundesliga match, first match in the German Cup and in his first match in the Champions League.