Barcelona have been accused of "bullying" Martin Braithwaite.
Barca are pushing the Denmark striker to leave this month, but he is reluctant to do so.
Players Association president Michael Sahl Hansen told BT: "The treatment that Martin experiences is completely unreasonable. Something that probably lies somewhere between bullying and harassment.
"It is shameful how FC Barcelona is trying to force him out of his contract, out of his employment. A player who came to their rescue when they were pressed is now disgraced.
"Where is the propriety?"