#1 Stefan Savić (Atletico Madrid)
Since his move to Atletico Madrid from Fiorentina, he has been a revelation. In 2015 he became the first Montenegrin footballer in the 21st century to play in a Champions League Final. He has been a regular for Atletico Madrid and he has been a very consistent performer for the 2014 La Liga Champions.
Though there was a time when he used to play in the Premier Leauge with Manchester City. During his time at Manchester City, he did show signs of his potential but he only lasted one season with the Citizens.
Chelsea are said to be interested in the defender and they are in talks with Atletico Madrid for him. But they will face competition from Juventus for the centre back.
With Chelsea defence, this season many times has looked very weak which resulted in surprise defeats to West Ham, Burnley, Crystal Palace and Roma. Also, Chelsea have been leaking in goals very frequently this season.
Though Savic might not be the leader type of player, he is certainly very good performer and would be a great addition to the Chelsea squad.At the age of 26, he is about to reach his peak and he would be a good replacement for Gary Cahill or David Luiz in Chelsea's line up.