I think it's become one of the worst kept secrets that Perez would like to get rid of Ronaldo and keep Bale as the new centerpiece at the club.Considering both Zidane and Ronaldo have both been at the club a long time, and are both legends of the club I reckon there are very good odds that they fucking hate each other.
Also given they are not going well it could be seen as the perfect time to freshen the team up. Ronaldo to Utd seeming more likely than ever.