I'm playing with Stuttgart using the latest update, meaning I started out in 2. Bundesliga first season. I've managed to offload some big names and extended the contracts with a few others, however my biggest star Filip Kostic won't even discuss a new contract. I'm on my third season, first season I won 2. Bundesliga and last season I finished 3rd in Bundesliga, but he still won't even discuss a new contract. Weird thing is he doesn't whine about wanting to leave the club or anything like that, he just seems determined to leave on a free transfer when his contract expires in 2 years. Is there anything I can do to change his mind, or should I just try and sell him now that I can get a decent fee from him?