Lyon president Jean-Michel Aulas has claimed that Alexandre Lacazette will not be allowed to leave the club until a replacement is brought in.
The 26-year-old was expected to join Atletico Madrid this summer, but the proposed move fell through when the Court of Arbitration for Sport upheld the club's transfer ban until January 2018.
"Our position is that as long as we have not signed his replacement, we will keep him," Sky Sports News quotes Aulas as saying. "He expressed the wish to leave and he was given an agreement to go to the club of his heart, but things did not happen."
Since breaking into Lyon's first team in the 2009-10 season, Lacazette has scored 129 goals in 275 appearances.