Rennes coach Philippe Montanier admits they're willing to listen to offers for Paul-Georges Ntep.
Aston Villa are chasing a deal for exciting attacking talent, though face competition from Sunderland for the former Auxerre star.
Montanier said of the 21 year-old: "He's just had his first full year in Ligue 1. He is aware of his potential, but also his need for improvement.
"He has a good head on his shoulders. He is aggressive on the pitch, outside he's a clever boy, endearing.
"We will study with the player if there is a big offer. The intention for us is not to be separated. And for him, it is best he doesn't go either."