The National Basketball Players Association (NBPA) is less than impressed with New York Knicks president Phil Jackson after he said Carmelo Anthony would be "better off somewhere else".
Jackson suggested on Friday the Knicks will look to part with 10-time All-Star Anthony, whose future has been the subject of intense speculation throughout the NBA season.
Knicks boss Jackson said the Knicks "have not been able to win with him on the court".
Those comments have angered the NBPA, who hit back at Jackson on Saturday.
"We voiced with the Commissioner our view on the inappropriate comments by Knicks President Phil Jackson," NBPA executive director Michele Roberts wrote in a statement.
"If players under contract cannot, under threat of league discipline, speak openly about their desire to be employed elsewhere, we expect management to adhere to the same standards.
"The door swings both ways when it comes to demonstrating loyalty and respect."
In 2016-17, Anthony averaged 22.4 points, 5.9 rebounds and 2.9 assists for the Knicks, who ended the season with a 31-51 record.