Strasbourg manager Thierry Laurey admits the likes of Mohamed Simakan could leave this summer.
Simakan is rated at £13 million, and RMC Sport have linked him with Everton.
"Him and others!" Laurey responded when asked if he wants to keep the 20-year-old, per HITC.
"Today, we have a coherent team so I don't want to let anyone go. But if someone has to leave us, we will adapt."
Clubs such as Strausbourg will struggle financially due to COVID-19, and selling one or two prized assets in the summer may be their only option.