He notably won the Scudetto with Roma in 2001, followed by the 2001 Supercoppa Italiana, under manager Fabio Capello, alongside forwards Francesco Totti, Gabriel Batistuta and Vincenzo Montella.

[6][7][8] He made his international for the Italy senior side debut under manager Dino Zoff on 16 December 1998, in a friendly match in Rome against the FIFA World-Stars, commemorating the first century since the founding of the Italian Football Federation.

[11][12] After the World Cup, he scored a goal in a 2–0 friendly win over Northern Ireland,[13] and on 18 February 2004, he made his final appearance for Italy against the Czech Republic, missing out on Trapattoni's Euro 2004 squad.

Despite his large, slender frame, he was also a good passer and dribbler, which enabled him to link-up with other players, create chances, and provide teammates with assists.

[14][15][16][17][18] Delvecchio was a contestant on the Italian version of Dancing with the Stars, Ballando con le Stelle 2012, where he placed second alongside professional dancer Sara Di Vaira, with whom he later began a relationship.