New Real Madrid coach Zinedine Zidane during the press conference at Santiago Bernabeu, Madrid, Spain, March 11, 2019. Real Madrid favourite Zinedine Zidane returned for a second spell as coach on Monday with plans to rebuild the Spanish giants who have fallen into crisis since he left in May after winning an unprecedented third straight Champions League. REUTERS/Susana Vera

New Real Madrid coach Zinedine Zidane during the press conference at Santiago Bernabeu, Madrid, Spain, March 11, 2019. Zidane also won a Liga title in 2017 among nine trophies before standing down having taken the club to the European summit but they have endured a miserable season in his absence, first sacking Julen Lopetegui and then Santiago Solari. REUTERS/Susana Vera

New Real Madrid coach Zinedine Zidane during the press conference at Santiago Bernabeu, Madrid, Spain, March 11, 2019. Real president Florentino Perez has turned again to Zidane, who stepped in for Rafa Benitez in 2016 and quickly guided the team to Champions League glory, but this time he will be without the club's all-time top scorer Cristiano Ronaldo. REUTERS/Susana Vera

New Real Madrid coach Zinedine Zidane during the press conference at Santiago Bernabeu, Madrid, Spain, March 11, 2019. The Portugal forward's departure in July to Juventus has had a big impact on Real this season while their other key players, like Marcelo, Isco and Gareth Bale, have struggled and Zidane has a big job on his hands as he prepares to shake things up. REUTERS/Susana Vera

New Real Madrid coach Zinedine Zidane during the press conference at Santiago Bernabeu, Madrid, Spain, March 11, 2019. President Florentino Perez explained that Zidane's return was to help restore the club's pride after a painful year. "This season we have not got the results we wanted and our responsibility is to put into action the reaction the team needs," he said at Zidane's presentation. REUTERS/Susana Vera

New Real Madrid coach Zinedine Zidane during the press conference at Santiago Bernabeu, Madrid, Spain, March 11, 2019. The Frenchman must oversee a regeneration by using the young players Solari brought through, including 18-year-old forward Vinicius Junior, left back Sergio Reguilon and midfielder Marcos Llorente, as well as welcoming major new signings. REUTERS/Susana Vera