Perisic, 29, put in a terrific display against England on Wednesday night, equalising in the second half of the World Cup semi-final clash.
His goal proved incredibly decisive as Croatia forced the tie to extra-time. Mario Mandzukic then scored the winner in the 109th minute, crushing English hearts everywhere.
Perisic's display didn't go unnoticed and Mourinho lauded the Croatian at full-time.
"Perisic is the kind of winger that is different to the others," Mourinho told Russia Today. "Normally you look at wingers and they are just fast and creative.
"But he is also physical, very physical. Fantastic in the air.
"So the way he wins that ball in the air [for Mandzukic's goal] and puts the ball into that space is only possible if you are very, very physical and dominant over defenders.
"So he was amazing by going there and winning that ball in the air."