Lyon striker Mariano Diaz is in the dark over reports of Real Madrid holding a buy-back clause.

Diaz moved to OL this summer, where he has kicked off his Ligue 1 career in superb form.

"Back to Real Madrid? I signed five years with Olympique Lyonnais ... but I do not know if Real Madrid has a buy-back clause," said Diaz.

"Friends at Real? The one with whom I speak most is Marco Asensio, I am glad that everything goes so well for him.

"I have not spoken with Zidane since I left."