The 41-year-old says his relationship with the Portuguese wasn't strong enough for him to work alongside him
Zidane enjoyed a difficult relationship with Mourinho during his time as Madrid's sporting director and he has now stressed that he would never be able to work under the Portuguese coach.
"With [Carlo] Ancelotti, it’s all happened quite naturally. I spoke with him by phone a few days before he joined and we sorted everything out. That was a good moment for me, for him and for the club," Zidane told Canal+.
"I wouldn’t have been able to take on that role with a coach I didn’t know. I could never have been Mourinho’s assistant for example.
"And besides, he already had an assistant. It wouldn’t have been right to take on the job of being his right-hand man."
Mourinho left Madrid in the summer of 2013 after an unsuccessful 2012-13 campaign in which he fell out with key players such as Iker Casillas and Sergio Ramos.