|Date of birth||10 January 1974|
|Place of birth||Modena, Italy|
|Height||1.80 m (5 ft 11 in)|
|Playing position||Attacking Midfielder|
|→ Bari (loan)||21||(4)|
|2005–2006||→ Ternana (loan)||24||(3)|
|2006–2007||→ Spezia (loan)||15||(1)|
|→ Crotone (loan)||11||(0)|
* Senior club appearances and goals counted for the domestic league only.
Dionigi started his career at hometown club Modena and played 20 games in Serie B. He then signed by A.C. Milan and played on their youth team. He then transferred to Vicenza (Serie B), and in November 1993 left for Como. He won promotion with Como partially by his 14 goals. In summer 1994, he left for Reggiana of Serie A, but in November 1994 he left on loan back to Como, this time at Serie B. In summer 1995, he signed for his third Serie A team, A.C. Torino, due to Como's relegation. In summer 1996, he had to search club again, due to Torino relegation. This time, joined Reggina of Serie B. He won top-scorer that season, and he was signed by another Serie A team Fiorentina. He played his worst Serie A start, and moved to Piacenza in October 1998, where he played two seasons. In January 2000, Piacenza sent him to Sampdoria of Serie B, but they met again six months later, due to relegation of Piacenza and Sampdoria missed the chance to promote. In January 2001, he re-joined Reggina, this time at Serie A to avoid relegation. But Reggina relegated at last, but Dionigi was one of the players to help the club back to Series A just a year later. He was dropped from the club Serie A plan, and he joined newly relegated S.S.C. Napoli of Serie B on 31 August 2002. He played in Naples until the club went bankrupt. Dionigi started his third spells at Reggio Calabria since 9 July 2004. After played another 10 Serie A games, he left on loan to Bari, Ternana, Spezia and lastly Crotone, all were Serie B clubs.
In summer 2007, he joined Taranto of Serie C1, where he last played since at Como 1993–94 season.
On 2 July 2012 he was named new head coach of Reggina.
Honours an awards
- Serie B Top-scorer: 1997
- Promotion through