Red Bull Salzburg chief Christoph Freund admits they could lose Erling Haaland in January.
The striker is being tracked by Juventus, Manchester United and Arsenal, among several European heavyweights.
After last night's 1-1 draw with Champions League opponents Napoli, where Haaland scored again, Freund said: "I've heard many rumours this past week.
"But that's good. We are proud that a player like Erling is in Salzburg. He now has seven goals in the Champions League.
"We'll see what happens in the future. He is currently in Salzburg and hopefully he will be there in the coming months. At the same time, we know this industry."
