"Well, it is a little bit surprising, but when you watched him at the Champions League final, he was really relaxed and you had the feeling that he really wanted to enjoy everything", Bierhoff said of Zidane.
"I suppose the President knew [Zidane was leaving] before today, so he has for sure been getting in touch with possible coaches and getting their opinion of coming to Real Madrid". I know it's a unusual moment for everyone involved, but I think it's the right decision. "After three years I need another discourse, another method of working", he told a hastily convened press conference. "And that's why I took this decision".
He leaves having guided the Spanish club to three successive Champions League titles and one La Liga success.
"It's my decision", he said. I thank him for his commitment, his passion. But the decision, for many, doesn't make sense.More news: Salah will recover in 3 or 4 weeks: Liverpool medics
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The former Real, Juventus and Bordeaux midfielder made Champions League history when he led his side to a third consecutive title just five days ago.
Madrid president Florentino Perez is reportedly very keen on the Argentinian, who even has the DNA to take over at Real Madrid - admitting recently he would rather work on his farm in Argentina than manage Barcelona.
"Achieving three Champions League wins is fabulous". But the trophy it lifted in Kiev on Saturday was the only one of Zidane's second full season in charge. After three years, it's what I have chose to do. "I want to leave when everything is going well".
"Of course, I could return, I'll always be near to this club as it's close to my heart. I'm really looking forward to getting started and to the challenge ahead".
The 45-year-old reiterated his immeasurable love for the club and thanked the management for offering him an opportunity to come as a player and a manager in different seasons.