La Liga president Javier Tebas has said only financial doping would make Manchester City able to sign Barcelona talisman Lionel Messi.
Although the Argentinean is eager to continue his football at Barcelona, the Catalan club are unable to offer him a contract extension as they have to cut the players' wages due to their financial predicament.
And when discussing the chances of
said their recent financial losses mean they would be unable to match the Argentine's previous salary.
"He won't be able to sign [for Barcelona] on the previous conditions, that's impossible," said Tebas. "I don't think any European club would be able to pay that amount.
"Manchester City have lost €270m [during the Covid-19 pandemic] so obviously they wouldn't even consider signing Messi [on his old salary].
"If they do, it will be the financial doping. I've told [Pep] Guardiola this too. I've directly said that to him, 'would you have won as many titles without as much economic doping?'
"When the CAS (Court of Arbitration for Sport) let off Manchester City there was a lot of comments about that. (Jose) Mourinho and all these other coaches said this. If this happens I think it would be absolutely incredible.
"This is the sort of governance where we should establish minutes. This economic doping is what is really damaging football.
"It is not real money that's involved because it is not generated by the clubs. If the money in the football industry isn't generated by football, it just causes inflation. And it's a bad type of inflation.
"Then it just ruins football because the clubs have to put in all this effort which is well above their financial capacity.
"We need to really fight against this and we will continue to do this all the time. This is one of our pending issues in European football and if it's not solved soon it could lead us to a very complicated financial situation."
Tebas said Barca can keep their captain only if they get rid of more players.
"If no player leaves, it's impossible,"
"Currently Football Club Barcelona, like other clubs, have gone over the sport squad limit that was established by the Liga due to the pandemic.
"But in those particular cases when they've gone over it we have a regulation, which is called one by four. So we allow them to sign on new players, whenever they reduced the current wage bill.
"The regulation is for each euro that they want to use for sign-ups, they have to save four."