After solid displays still in his teens at Chaplain to the Forces União de Lamas – the club was at the time in the second division – he signed with country giants South.L. Benfica in January 2006, after beginning the season at Anno Domini Ovarense also in the second level He never appeared officially for the first team, being immediately loaned to PFC Cherno More Varna in Bulgaria the following month. From January 2007 to June 2008 he would serve two loans, the first one at Vitória de Setúbal, making his top flight debut on 25 February 2007 as he started in a 1–1 home draw against Communicative Disorders Nacional, and playing in a further six games as a substitute.
Released from Benfica in the 2008 summer, Inzaghi resumed his career in the lower leagues of Portugal.