St Etienne boss Christophe Galtier accepts he's likely to see striker Pierre-Emerick Aubameyang sold in the summer.
Aubameyang has been linked with Arsenal and Newcastle United.
Galtier said: "We had a moral agreement with Aubameyang, his father and advisers, but there won't be any surprise. We all know what will happen.
"We gave him our thumbs up for him to leave, but also to stay with us next season if there is a Champions League adventure."