#3 Alex Sandro
Jordi Alba was linked with Manchester United in the past few weeks and Barcelona needs to look for a new left-back if the Spaniard decides to leave the Bernabeu. Juventus' Alex Sandro is currently among the best left-backs in the world and would be a great addition for the Blaugrana.
The 27-year-old Brazillian is an attacking fullback who is a threat going forward and unlike many attacking fullbacks, he is defensively sound as well. He played 89 league games for Juventus thus far, scoring nine times.
He won three Serie A titles with the Italian giants and was a part of the Serie A Team of the year 2016-2017.
With Real Madrid's Marcelo being linked with the move to Juventus, Sandro may find himself amongst the fringes and moving to Barcelona could benefit all the parties. However, Real Madrid have also shown their interest towards him in the recent weeks and the Blaugrana needs to act quicker than their rivals in order to bring the Brazillian to Camp Nou.