When Giovanni Fanello was selected to join the Italian team for the 1960 Roma Olympics, he had not yet played in Serie A but he had had a very good season with US Catanzaro in Second League where he scored 15 goals. At the Olympics, Fanello played two matches, scoring a goal against Taiwan. From 1962-66 he played four seasons in Serie A, one with SS Napoli, two with Club Calcio Catania and one with AC Torino, scoring 20 goals in 81 matches. He ended his career in Second League with three seasons with AC Reggiana, scoring 18 goals in 95 matches. While with Napoli Fanello won the Coppa Italia on 21 June 1962, defeating SPAL 2-1 in the final in Roma, but he did not play in the final match.