Real Madrid manager Álvaro Arbeloa called upon the example of Juanito, Real Madrid’s cult hero from the 1980s, as proof that even the most cherished players in club history have made mistakes. Arbeloa delivered this history lesson as part of an impassioned defense of both Federico Valverde and Aurélien Tchouaméni. The scrutinized pair have been at the center of an almighty media storm this week after it was confirmed that the two midfielders engaged in what Valverde described as a “senseless fight” which left the Uruguay international unconscious and requiring a trip to the hospital. Both have since apologized and sought to downplay the disagreement, yet Real Madrid still felt compelled to fine each player $588,500 (€500,000) . While it remains to be seen what the club’s stance will be once the summer transfer window opens, Arbeloa took a remarkably flattering approach to the scuffle, which he wrote off as a mistake everyone has been guilty of. Who Is Juanito?…