|Date of birth||3 December 1984|
|Place of birth||Bergamo, Italy|
|Height||1.84 m (6 ft 0 in)|
|2006–2007||→ Cesena (loan)||14||(1)|
|2007||→ Piacenza (loan)||13||(3)|
|2007–2008||→ Grosseto (loan)||40||(9)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 09:55, 31 August 2014 (UTC).
† Appearances (Goals).
Born in Milan, Lazzari started his professional career at hometown club Atalanta. During 2003–04 Serie B season, he was promoted from Primavera under–20 team to the first team. He made his Serie B debut on 4 October 2003, substituted Riccardo Montolivo in the 86th minute. He followed the team promoted back to Serie A as the 5th and made his Serie A on 22 September 2004, replaced Nicola Mingazzini in the 81st minute. Lazzari scored a hat-trick against Juventus in Coppa Italia, a match in which Juventus was eliminated in a 5–3 aggregate, while Lazzari also scored the 2 goals in the first leg. Lazzari followed Atalanta relegated back to Serie B in June 2005. He won Serie B champion with the team in June 2006.
In August 2006, he was loaned back to Serie B for Cesena, as part of the deal that Atalanta signed Adriano Ferreira Pinto. On 31 January 2007 he was sub-loan to Piacenza Calcio, as part of the deal that Cesena signed Alessandro Pellicori. In July 2007, he was loaned to Serie B newcomer Grosseto, where he finally became a regular starter and scored 9 goals.
On 9 July 2008, he was sold to fellow Serie A side Cagliari in co-ownership deal, signed a 4-year contract. He took no.10 shirt from departed winger Pasquale Foggia but started occasionally. He became a regular starter in 2009–10 season, after Andrea Cossu became the first choice attacking midfielder, with Lazzari acting as left midfielder. He scored 6 goals that season. On 3 June 2010, Cagliari decided to sign him outright for a reported €3 million.
With his new team, on 2 September 2012, he scored the 1–4 goal against Juventus at Stadio Friuli.
- "ROSA UFFICIALE PRIMAVERA ATALANTA B.C. STAGIONE 2003/2004" [Official Atalanta BC Primavera squad 2003/2004 season]. Atalanta BC (in Italian). Archived from the original on 5 October 2003. Retrieved 8 July 2010.
- Match Report
- Match Report
- Menicucci, Paolo (13 January 2005). "Lazzari leaves Juventus reeling". UEFA.com. Retrieved 8 July 2010.
- "Lazzari è del Cagliari". Cagliari Calcio (in Italian). 9 July 2008. Retrieved 8 July 2010.
- "Lazzari tutto del Cagliari". Cagliari Calcio (in Italian). 3 June 2010. Retrieved 8 June 2010.
- Masiello, Vince (27 May 2010). "Cagliari Star Andrea Lazzarri Ready To Follow Massimiliano Allegri To Milan". Goal.com. Retrieved 8 July 2010.
- "Lazzari è un giocatore dell'Udinese!". Retrieved 30 August 2012.
- Martorano, Stefan (8 August 2013). "Europa League, Udinese ai playoff: 4–0 al Siroki Brijeg" [Europa League, Udinese into playoff: 4–0 against Siroki Brijeg]. Gazzetta dello Sport (in Italian). Retrieved 31 August 2014. "...pallonetto spettacolare da metà campo messo a segno da Lazzari (spectacular lob from the halfway line scored by Lazzari)"
- Profile at Cagliari (Italian)
- Profile at Soccernet
- Profile at Soccernet (Cagliari)
- Profile at AIC.Football.it (Italian)
- Profile at Soccerway
- Profile at La Gazzetta dello Sport (2009–10) (Italian)
- Profile at La Gazzetta dello Sport (2007–08) (Italian)
- Profile at La Gazzetta dello Sport (2006–07) (Italian)
- FIGC (Italian)