The debate over Zidane's coaching credentials has taken a turn for the worse in recent weeks.
On 30th August, MARCA reported that the RFEF Coaches' Committee intended to monitor the situation with the Frenchman following a complaint filed by the schools director of the Centro Nacional de Formación de Entrenadores (National Coaches' Training Centre, CENAFE).
It all boils down to Zizou allegedly violating the rules by assuming the role of head coach of Real Madrid Castilla without being in possession of the necessary qualification.
What started out as merely a monitoring exercise has now led to an investigation being opened by the Federation's Competition Committee that could see the Frenchman and even Real Madrid itself landed with a ban.
Zidane and Real could face stiff penalties. Article 104 states that such violations carry the punishment of a ban for four to 20 games, or one to six months.
The initial CENAFE complaint has been added to with a report sent to the Competition Committee by the Coaching Committee.
MARCA has been told that the report includes videos and photos which show that Zidane may have been performing the duties of head coach.
Even articles published on Real Madrid's own website talk about 'Zizou' as the team's 'numero uno'.