Regardless, Barcelona shouldn't have lost Messi. If he had offered to pay his salary and get a 10% discount from the other players, I think the team would have accepted it. If this was done, of course, the balance in the team could be upset.
From what I understand, Messi can not cut his salary more than 50% because of La Liga rule as well. La Liga does not accept difference in salary between two seasons is more than 50%. Is it real rule from La Liga?
Hearing that Paris SG is interested in Messi, I read news that Barcelona management will complain about Paris SG. They claimed that the financial situation of the Paris team is worse than Barcelona.
This is another unprofessional response from Barcelona. If they can not keep Messi, they should respect him from all contributions he did for the club, and let him go. They should keep silent and support Messi for the new contract in PSG.
Oppositely to what they should do, they attacked PSG and tried to challenge Messi and PSG. I don't like it.