Barcelona, Manchester United, Arsenal and Bayern Munich have all been linked with Juan Cuadrado, but the Colombian's current ownership must be resolved first.
Cuadrado has gone from being an interesting prospect to an outright superstar after a magnificent season in Serie A for Fiorentina.
The Viola are determined to keep the winger, but they will have to fight on two fronts to do so.
Firstly, the Tuscans must convince Udinese to relinquish their 50 percent share of the player, which is proving difficult.
Fiorentina had reportedly expected to spend £8 million, but Udinese are aware of Cuadrado's rise in status and transfer expert Alfredo Pedullà believes that the Zebrette are demanding at least £12.5 million in cash rather than a part-exchange, which has been mooted.
That represents a significant investment for Fiorentina and they would then have to fight their second battle to prevent the star being lured by a top European club.
If Fiorentina and Udinese can't reach an agreement, Cuadrado's ownership will be decided by a blind auction, something that both clubs are keen to avoid.
Cuadrado could fetch around £25 million if he is sold on and Barcelona are said to be the most likely side to come in with an offer.