Zulte Waregem management admit potential new signing Charly Musonda has gone missing.
The 25-year-old ex-Belgian U21 international was released from Chelsea this summer after ten years at the club.
Musonda was offered a deal by Waregem after impressing in training and in a trial match.
However, he never returned to training after the contract offer, with the Belgian top flight club initially insisting he was only absent because of a family matter and would return to sign for them.
The club's chief executive, Eddy Cordier said: "When will Charly Musonda return to training? I don't know.
“Will he ever come back? No idea.
"I don't know whether we will pull the plug on him because he hasn't been in since he trained a couple of weeks ago and there has been no contact.
"It's more important that we concentrate on the group of players who are here at the club for pre-season."