Barça has one of the best squads in the world, but Pep Guardiola is still missing an attacking left back.
Adriano and Maxwell are capable subs, but they aren't the world-class back Dani Alves is on the right side. And they're not particularly amazing at defending like Abidal, either.
That said, Barcelona could be easily improved on the left flank with a bombing left-back.
In this slideshow, we will simply name five options that could fit the bill as good left-backs for the Blaugrana, with no regard whatsoever to whether or not Pep, Rossell and company actually have them on their sights as potential signings (even though they probably should).
Author's note: This will be the third slideshow in my series of the Role Players Who'd Improve Barça Tactically, so expect to see other slideshows on this subject soon.
If you want to take a look at the other two slideshows in this series, here they are: 5 Dribbling Wingers Who'd Improve Barça Tactically and 5 Post Forwards Who'd Improve Barça Tactically.