Zidane was widely regarded as one of the most prolific footballers during his playing days, having won successive Serie A titles with Juventus in 1997 and 1998, before joining Los Blancos where he added a La Liga crown and a UEFA Champions League winners’ medal to his cabinet.
He also helped France to the World Cup crown in 1998, the same year he was named Ballon d’Or winner.
Zidane has since gone on to coach and led Real Madrid to the La Liga title and Champions League crown in his first six months in charge, having taken over from Rafael Benitez in January 2016.
And, with a KickOff.com journalist having been flown to Madrid courtesy of La Liga as one of six media personnel to enjoy a round-table conversation with Sanz, the former Los Blancos defender’s admiration for Zidane was evident.
“When you talk about Zidane, one of the best players in the world, and all his life is involved in football, and these types of coaches, they have the football in his blood,” said Sanz ahead of Saturday's El Clasico against bitter rivals Barcelona.
“He knows everything about football, and for me the most impressive part [of Zidane’s management] is the psychology.
“It was the same with Vicente Del Bosque [former Real Madrid player turned coach]… because in terms of football, he knows everything.
“You talk about the most successful player in the world, in his [Zidane’s playing] period, and right now, just in two years, maybe less than two years, is [one of] the most successful coaches in the history of Real Madrid.”