The former Chelsea captain has struggled for form and fitness in his first season in Spain.
But Martinez declared in Bilbao: “There has been an evolution. At the beginning, it was rather for the others to adapt to what Eden can bring. The match with PSG was decisively different.
“There was a change of style and Hazard played a very important role. It was his dream since his childhood (to join Real Madrid) and he has taken the steps very well.