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It wasn't just Olmo who had problems registering for the season, but three other players namely Martinez, Torre, Pau Victor and Alex Valle and it's unclear what will happen now.
If Barcelona need 60 million to register Olmo then Laporta is in big trouble.
It's good that at least Ansu Fati and Langlais could be registered and now in case of sale or rent, Barcelona can spend the money according to the rule “1+1”, but still I think 60 million will not be easy for Barcelona to find before the start of the season.
Every season, there are reports that Barcelona cannot register their players so they might have to send them on loan or sell them, but every season Barcelona always register their players. I think these things are stale now because there is no way a club like Barcelona will sign a player when there is no way to register that player. Remember when they couldn't register Lionel Messi, they didn't bother giving him a new contract. Barcelona will still register all their players.
At the moment Danny Olmo is still not registered and will not take part in Barcelona's first game against Valencia and I think that if Barcelona could have registered him, they would have done it already, because it is unlikely that Barcelona would have paid 60 million euros for him.
Although Flick says that Olmo is not fit yet, but I think it is just a formal excuse, because Olmo played his last match more than a month ago in the final of the European Championship and it is unlikely that he has not had time to recover yet.
What Xavi was worried about seems to have happened. He spoke the truth but his words actually infuriated his boss and got him fired because of it.
Now Barcelona must find a way to get fresh funds and I think it wouldn't be strange if in the near time, there will be some players who may be sold to solve that problem. There have even been rumors that De Jong has been linked with Man United again.