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|Date of birth||8 July 1974|
|Place of birth||Noale, Italy|
|Height||6 ft 1 in (1.85 m)|
|2002–2003||→ Siena (loan)||37||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of May 2012.
Fortin spent his first 7 seasons of his career in the lower divisions of Italian football.
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Fortin joined Siena in July 2002. In his first season he served as the first choice goalkeeper for the Serie B runners-up, as they won promotion to the Italian top division. In his second season with Siena, and his first Serie A season, he lost his place in the starting line-up to Generoso Rossi. In the 2004–05 season, both Fortin and Alex Manninger shared the role of the club's first choice keeper. In the next season, he became Antonio Mirante's backup. In July 2006, he joined Cagliari and worked as Antonio Chimenti's backup. In 2007–08 season he was the first choice goalkeeper ahead Jan Koprivec and Vincenzo Marruocco. In December 2007 he lost his place to Marruocco, and in January 2008 the club signed Marco Storari. Fortin and Marruocco left the club in late January.