Florentino urges Real Madrid not to panic after Lyon defeat
Real face being dumped out of the competition unless they can overturn their 1-0 deficit in the return-leg at the Bernabeu.
"We should not be afraid, because our dreams are going to be reality," said Perez.
"Our economic, social and sport model is unique with fair play at all levels. We don't need to talk about it.
"The strength of the club is due to its institutional stability. Real Madrid are always to be the best club, the most ambitious and modern in the world."