MLS in battle with CONMEBOL has caused a controversial decision

Days ago, it was reported that several MLS clubs would lose a large number of players due to the matches of the CONMEBOL national teams towards the Qatar FIFA World Cup 2022. Faced with this news, the competition has made a decision. 
According to sources close to the competition, MLS has refused to lend players to CONMEBOL national teams, due to the protocols and calendar that will affect several players from the gameplay for their countries. 
MLS has determined that its clubs have no obligation to lend their players to CONMEBOL, which may spark a battle between the entities with various national teams and FIFA, determining who will be right.