Zinedine Zidane's lack of the relevant coaching qualification is Florentino Perez's latest setback as the Real Madrid president scrambles to fill the still empty bench at the Estadio Santiago Bernabeu and get the club's summer transfer business really moving.
The former France international has begun the process of gaining a full coaching qualification in his home country, however AS claims Zidane has yet to complete the 390-hour course and therefore cannot take charge of a Primera Division side.
Carlo Ancelotti remains Perez's first choice to replace Jose Mourinho as Madrid boss, but Paris Saint-Germain's apparent inability to find a suitable substitute for the Italian - with Guus Hiddink and Andre Villas-Boas the latest names reportedly considered and discarded - has led to further options being explored in a process criticised as "desperate" by the Madrid chief's predecessor Ramon Calderon.
Zidane's preferred solution is reportedly to take a hands-on coaching role as Ancelotti's assistant, and Spanish radio show El Larguero claiming the Italian would be happy with such an arrangement. This would still leave Madrid lacking a heavyweight 'sporting director' figure to look after transfers and contracts within the Bernabeu hierarchy.
While the Madrid camp await news from Paris, Perez and Zidane were due to meet on Wednesday afternoon to discuss the situation and talk transfers, with Gareth Bale, Luis Suarez, Edinson Cavani, Robert Lewandowski, Marco Verratti all reported targets, and Gonzalo Higuain still expected to leave for Juventus.
Mooted new contracts for Cristiano Ronaldo, the reported target of a €100 million bid from big spending Monaco, and Xabi Alonso also need to be progressed.
Madrid have already made two signings this summer - with the club taking up its €6.5 million option to rebuy right-back Dani Carvajal from Bayer Leverkusen and also paying a reported €5.3 million to take holding midfielder Casemiro from Sao Paulo.