Would be nice if someone could answer this. I've been playing as Barcelona and I wanted to keep Xavi for one or two seasons then cash in on him. I ended up selling him half way through my first season for (39 million) because his bio said he was definitely interested in a move. They offered him a better salary which is why I think he wanted to leave. Anyway, it was just the fear of him possibly handing in a transfer request then leaving for nothing that made me sell him.