"If he's an ass, it's not my fault, but I think his manager has a lot to do with it," he told L'Équipe. "Newcastle really isn't a good choice. He'll get himself moved on next year, but it doesn't bother me.
"He agreed with my son (Laurent, Montpellier's delegated president) that he could leave if he found a club he liked.
"We're not going to cry. His head was no longer at Montpellier, but it's not a problem. He's not irreplaceable. The important thing is that we get some money in."
Newcastle will reportedly pay £6.7m to Montpellier for Yanga-Mbiwa.