#4 Caglar Soyuncu (SC Freiburg)
Not the most popular of names out there, the young Turkish international has been growing steadily since he joined Freiburg in 2016 but is now firmly in the headlights of leading European clubs.
A deceptively strong player, he is rather rash and can be impetuous but has gotten better this season and is well on his way to becoming the genuine article.
A tall defender, Soyuncu is good in the air and has a good leap which helps in coping with aerial challenges.
His pace over short distances is said to be his best strength as this allow him to have excellent recovery capabilities. He is also very comfortable when in possession and can pass the ball out from the back as well.
Various English sides have been linked to the 22-year-old including Arsenal and it is said that he could cost as much as £30m for interested buyers.
Blaugrana president Josep Bartomeu will need to move quickly if he is to get the youngster to don the colours of Barca.