Four big problems Zidane's successor faces at Real

Real Madrid seem to be unprepared for the day of parting ways with Zidane, who unexpectedly held a press conference to resign despite having a contract until 2020. However, whoever succeeds him understands that the road ahead is full of thorns with long-standing problems.

Cristiano RonaldoRonaldo is Real's biggest star but dropped a bombshell after the Champions League final about his future at the Bernabeu. The superstar said he was "happy to play for Real and will give an answer in the next few days". When Ronaldo's answer was not forthcoming, coach Zidane went one step ahead by deciding to resign at the top.

Ronaldo's dissatisfaction has been evident since the Champions League final in Cardiff last year. At that time, Ronaldo was promised a salary increase by President Perez, but the Real chief decided to postpone it after only a month. Adding fuel to the fire, the rumors of Real's connection with Neymar and President Perez's silence made Ronaldo even more unhappy.

During the ceremony to celebrate the 13th European Championship, fans chanted Ronaldo's name and urged him to stay. After Zidane left, Ronaldo's uncertain future made the atmosphere in the Real dressing room even more stifling. Stabilizing this atmosphere will be the first task for Zidane's successor.

Gareth BaleBale has put himself on the transfer market with his comments after the Champions League final, where he was a hero with a brace. The Welshman was disappointed to be left out of the starting line-up for the final and demanded to play every week. Bale said he would have to sit down with his agent and make a decision, highlighting the possibility of a move.

Last summer, Bale showed his determination to try his hand at white again by rejecting Man Utd. However, the season was not a happy one until the final month. Bale was in good form during this time, but was still left out of both the semi-final and the final by Zidane.

Zidane's departure opens up the opportunity for Bale to stay at Madrid. The player has been protected by President Perez and the new coach's attitude will decide Bale's future.

Goalkeeper positionhas been controversial at Real since parting ways with Iker Casillas in 2015. That summer, Real thought they had David de Gea but a "fax machine incident" meant the Spanish goalkeeper stayed at Man Utd while Keylor Navas continued to guard for the Bernabeu team.

The Costa Rican goalkeeper has contributed greatly to the achievement of winning three consecutive Champions League titles but is always in a state of anxiety. Real continuously wants to replace Navas with names such as De Gea, Courtois, Leno...

In the January 2018 transfer window, Real wanted to bring in Kepa Arrizabalaga, but coach Zidane himself blocked the deal. The French strategist showed his protection for Navas and did not think that goalkeeper was a position that Real needed to change. However, Zidane's departure made Navas' future completely dependent on the new coach.

Neymar and transfer dealswaiting for a new coach in the summer of 2018. Real's collapse in the domestic arena shows that they need innovation in the squad and this reform will depend largely on Zidane's successor. Rumors related to Neymar and a striker of the level of Lewandowski or Harry Kane, will be expected to shock this year's transfer window.