Rose City Futsal Academy held a training clinic session with Giustozzi as a special guest coach, and he had this to say regarding the experience, "The truth is that I left very happy with how Rose City treated me and above all, how involved the people were in every conversation, every technical training, and every practice that I had".

Speaking about the future of futsal in the United States, Giustozzi was optimistic, "I believe that the U.S. has huge potential due to its wide margin to improve, has a large quantity of players, a great quality of players, and the proper infrastructure. The important thing for futsal in the United States in the future is to find the right path to growth".

Giustozzi coached the Argentine National Futsal Team to a FIFA Futsal World Cup Final Victory in 2016. His emotions as a result of winning the trophy were expanded upon, "On a personal level, it was a single moment of joy that I hold with me for the rest of my life, but what it really changed was my professional life. The story of sport in Argentina changed; the same teams do not always win and we showed that by defeating Spain".