"After three years, the players need a new voice and that is why it is time to change", stated Zidane at a press conference.
The Frenchman revealed he told president Florentino Perez of his decision on Wednesday, with captain Ramos the only player he informed prior to the announcement.
"It can be a "see you later", Madrid has given me everything, I will be close to this club all my life". It's a unusual moment to do so, I know, but an important one too.
"I love this club a lot, the president, who gave me everything - to play first at this great club". For me and for everybody, I think the moment to change has arrived.
Zidane said he was unsure of his ability to inspire the team to more victories.
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Zidane replaced Rafa Benitez after a stint with Madrid's "B" team. He knows that I wanted to sign him more than anyone as a player, as well as a coach. Bale possibly. United could afford anyone in the world, plus Zidane is the only manager players would go to over Guardiola arguably.
Zidane surprised the football world by resigning as Real Madrid coach just days after winning the Champions League.
Zidane spoke little about his future but said he is not immediately looking to coach another club.
"But apart from that, Real will always have a chance to win the Champions League".
From Almudena Cathedral to Plaza de Cibeles, watch Real Madrid make their way around the Spanish capital after their latest UCL triumph.
Zidane claimed an unprecedented third consecutive Champions League title when Real beat Liverpool 3-1 last Saturday, capping a remarkable period in his first job in senior club management.
Zidane himself left the topic on a cliff-hanger by saying: "What's coming now, I don't want to talk about it right now".