Di Fonzo started his career in
Primera B Metropolitana with
Deportivo Español. He made his professional debut on 2 May 2018 during a goalless draw with
Comunicaciones, which was his only appearance of the
2017–18 season. Di Fonzo returned to their first-team set-up in the succeeding October, appearing for the full duration of fixtures with
All Boys and
Fénix. ==Career statistics==