Manchester United have been boosted in signing Juan Cuadrado after Fiorentina president Andrea Della Vallea admitted that it would be difficult to keep their versatile player in Florence.

The 26-year-old was part of Colombia's squad for the recently concluded World Cup in Brazil. His form for the club and his performance for the national side have seen him attract interest from clubs across Europe.

United are keen on adding the £30m-rated winger to their squad, while their league rivals Arsenal and Liverpool have reportedly registered their interest. Barcelona are also in the frame for Cuadrado's signature.

The Colombian international is currently on holiday and will join his club teammates in August.

The Fiorentina chief has expressed his desire to keep Cuadrado in Italy. However, Vallea has admitted that he would allow the talented player to leave his current employers if he decides to look out for a new challenge.

"Are we going to keep Cuadrado? I will do everything to achieve it; it is a difficult but not an impossible situation. But it also depends heavily on the willingness of the player," Vallea told Gazzetta dello Sport.

"We will meet in early August when he returns from holiday and we'll see if we can convince him to stay. If it does not, we will take action, but he is a serious boy and it's not my sentiment."

"I really want to reiterate that Cuadrado and his agent are very serious people. I know that he is of interest to top clubs in Europe. But I will do everything possible to keep in Florence: it is a complicated situation, but not impossible," the Fiorentina president added.

Cuadrado had earlier admitted that he would decide his future after the World Cup. The Colombian did claim that he is happy at Fiorentina.

"I've said it before and I'll say it again. My family and I are very happy in Florence. Right now I'm focussed on the World Cup, after which the time will come to think about my future," Cuadrado told the Spanish newspaper Marca.