The midfielder joins Inter by Dinamo Zagreb and signs a new deal until 2030.
Sucic told the website of Inter: “For me, Inter is one of the biggest clubs in Europe, when I had the chance to come and play here, I didn't have the least doubt.
“I really wanted to come here, for me it is a great opportunity, I know how prestigious this club is and what it represents and I am very happy that I have arrived.”
Sucic, in Dinamo, played for the former Italian captain Fabio Cannavaro, and also said: “He spoke very high about the championship, of this club because he played here, from Italy and Milan. We had a nice chat.”
The young midfielder also said: “I think I can learn a lot. In this club there are very experienced players, of a high level, who have been playing regularly in the Champions League for several years, who in the World Cup, European Championships, Copa America and all this, confirm their great experience: I think they can help me a lot.
“Personally, I can improve tactically, in defense and also in attack. You are never perfect and I believe you should try to grow every day and I will work hard to do exactly that.”