Statistics suggest that Marcelo has become a weak link in the Real Madrid squad, as he is now the only player to have featured in all of Zinedine Zidane's La Liga defeats in his second spell at the club.
Marcelo played the full 90 minutes of Madrid's surprise 4-1 defeat away at Valencia on Sunday - a result which leaves the reigning Spanish champions four points adrift of leaders Real Sociedad having played a game less.
The Blancos were by far the most consistent side in La Liga last season, but their performance levels have dipped significantly in the early stages of the new campaign.