Marcelo is currently out of action after breaking his foot in a training session with his national side in October but is expected to back in action early in the new year. That will be very handy handy for his club, who lost Fabio Coentrao to injury during Tuesday night's largely ceremonial Champions League match against Ajax.
The Brazilian brace-wearer is an admirer of Roberto Carlos, the former Real defender famous for his banana kick in 1997, and then bothering traffic on the Castellana with each and every subsequent effort until he left Madrid for Fenerbahçe in 2007.
Marcelo is certainly a fine defender, but the world's best? Here are five left backs who may beg to differ.