Celtic are pushing to land AIK defender Alex Milosevic ahead of Premier League clubs.
The Scottish Sun says the talented young stopper is also being tracked by Liverpool, Arsenal, Tottenham and Werder Bremen.
But sources in Sweden say Celtic could land highly-rated Milosevic, 19 for £1.5million.
AIK spokesman Jens Andersson said: "Alex is a player who has created a lot of interest.
"Out of respect for the clubs, I won't talk about them by name. But there is a lot of interest in him around Europe.
"He's still under contract with us, but football is a business."