#2 Sergio Ramos
He is among the best central defenders in Europe and certainly one of the greatest to have ever represented Real Madrid and the Spanish national team.
That being said, Ramos can be impetuous at times and in addition to superb tackles, he can sometimes put in a bad tackle or simply push opponents off the ball for no reason. His famous temper has gotten him into trouble many times over the years in his games for Sevilla and Los Merengues.
Ramos has gotten a red card 24 times in his career so far; the highest number of red cards in the history of La Liga.
Additionally, there is an argument that a particularly volatile clash can also induce him into making big mistakes and that is demonstrated in his record of 5 red cards in El Clasico.