Reja replaced Davide Bellardini as Lazio coach on Wednesday.
“I think he is the right man,” Zoff told Il Messaggero newspaper.
“He is my fellow countryman and we know each other very well. He is an experienced coach who can give tranquility and concreteness, which is exactly what Lazio need right now.
“He is accustomed to working in big places. Just look at his spell at Napoli, so he won’t let a city like Rome get to him.”