Rosati was first choice for Lecce during the 2006–07 season and the successful 2007–08 Serie B campaign but only played four matches in 2008–09 when the team played in Serie A.
Rosati was initially considered Lecce's primary choice during the 2006–07 and 2007–08 seasons, which were successful campaigns in Serie B. However, he only played four matches of the 2008–09 season when Lecce participated in Serie A.