Lyon manager Hubert Fournier says it will be very difficult to keep Alexandre Lacazette at the club if a £42m offer is received this summer.
The 24-year-old is a target for Arsenal, Chelsea and Manchester United according to reports in England.
He scored 27 goals in 33 games in last season's Ligue 1.
"I'm not worried about Alexandre," Fournier told L'Equipe.
"Of course, if a €50-60m (£35-42m) bid was tabled, I will no doubt have to prepare for his exit and wish him good luck, but I really feel like he wants to stay."