4-3-3 holding system
This formation has played a huge part in Real Madrid's success until now under Zinedine Zidane, with the Frenchmen deploying his front three consisting of BBC to wreck havoc. And unsurprisingly, they have caused much trouble to the teams defending against them.
Real Madrid's Champions League games have been a treat to watch, though one can claim they have had a pretty hard time overcoming the likes of Juventus and Bayern.
Well whatsoever, they have won three Champions League titles in the past three years, and this is pure consistency and dedication. Though their league performances have been a bit of a concern, they run riots in every European game.
The 4-3-3 holding system will be the likeliest one, as this brings in immense balance to the squad.