The Ivorian-born Australian citizen has been given limited game time recently and wants to find a new home.
“For me I need to move on," Salley said.
"I've already made up my mind. I don't know what's going on.
"I was looking forward to playing here but it doesn't look like it's going to happen and that's the way it is.
"I haven't spoken to anyone about it," he said of being left out of the squad.
"For me it's not the best way, if you're not going to use someone tell him why he's not playing.
"I'm here just training, training, I don't know what I'm here for."