VfB Stuttgart coach Sebastian Hoeness admits they could lose Serhou Guirassy in January.
The centre-forward is being linked with several Premier League clubs this winter.
Newcastle, Everton and West Ham have been linked with Guirassy.
Hoeness conceded: "In football you can never exclude anything, so I won't do that here either.
"I think he feels really comfortable. Of course, I hope he stays with us for a long time, just has a good time with us.
"But with him and with the others, it is never possible to exclude things."