Saturday night's El Clasico victory was a huge and positive one for Real Madrid. The Spanish giants were resolute defensively and held firm at the Nou Camp, nullifying Barcelona's attacks and claiming an historic 2-1 win.
Casemiro's presence in central midfield was a vital factor in the victory, as was the unpredictable brilliance of Gareth Bale, who wrongly had a goal disallowed with the scoreline level at 1-1.
Cristiano Ronaldo ultimately scored a priceless winner in a game which could prove a turning point in the La Liga title race.
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However, a persistent issue arose once again during the clash - the performance and discipline of Real's Sergio Ramos. The Spanish centre-back saw red for the 21st time in his career with just ten minutes remaining and could have cost his side, but for Ronaldo's late strike.
As a result, one question must be asked: should Ramos be a guaranteed starter after letting his teammates down once again?
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Tenacity can be a useful weapon for a defender to possess, much like a fiery attitude. Nevertheless, when used in an extreme manner, these attributes can often prove fatal to a team's chances of success.
It's the over-use of these traits which has let Ramos down on far too many occasions. In fact, the game against Barcelona marked the Spaniard's domestic return after picking up another red card against Las Palmas in mid-March.
Of course, the Spain international has often been a match winner and leader for Loc Blancos, his goals during their successful 2014 Champions League campaign epitomising this point.
However, his susceptability to let down his side with rash decisions and inept defending, which he is becoming increasingly prone to, should perhaps remove his status as 'undroppable'.
Teammate Pepe is also renowned for controversy, yet the Portuguese has been a hallmark of consistency at the Bernabeu and, somewhat surprisingly, toned down his behaviour in recent times.
At 33-years-old, he is arguably playing the best football of his Madrid career and, when fully focused on defending and not on irritating opponents, still a world-class defender.
Elsewhere, Raphael Varane has all the credentials to replace Ramos, the Frenchman's pace and outstanding positional sense particularly impressive assets.
Pepe and Varane could forge an effective and steady partnership at the heart of Real's defence and, if given a run of games together, would prove beneficial to Zidane's rein.
Ultimately, Ramos has a lot to prove if he's to maintain his starting role, because if he continues to prove a liability through his poor decision making, he could find himself on the bench.
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