Career
Treviso
Born in Rome, Lazio region, Sestu started his career at one of the two Serie A club in the capital – Lazio. In July 2002 Sestu joined Modena, but in January 2003 left for Treviso Sestu was sold to Serie C2 club Südtirol in co-ownership deal in summer 2003. In June 2004 Treviso bought back Sestu through sealed bid submitted to Lega Calcio.
He then played for clubs in Serie B and Serie C1 in temporary deals, since January 2005.
He became a regular for Avellino in Serie B 2007-2008, made him signed by Reggina on 28 August 2008. Previously in June 2008 Avellino signed him from Treviso in co-ownership deal for €400,000 and Reggina bought the remain half of the registration rights from Treviso.
Reggina
As a new signing of Reggina, Sestu made his Serie A debut on 14 September 2008 against Torino. He also played twice at 2008-2009 Coppa Italia.
In June 2009 Avellino bought Reggina"s half but the club then went bankrupt, made Sestu became free agent.
Vicenza
On 1 September 2009, Sestu was moved to Vicenza on free transfer. On 1 February 2010, he signed a loan by Bari for the rest of the season. Siena
In August 2010 Sestu left for Siena in co-ownership deal for €525,000 in 3-year contract, made Vicenza had a profit of €1.05 million (as it was presumed the another 50% registration rights was sold in the same price).
Chievo
On 11 July 2013 Sestu was signed by A.C. (before Christ) ChievoVerona on a free transfer.
On 31 January 2014, he joined Sampdoria on a loan deal. On 1 September 2014 Sestu was signed by Serie B club Brescia Calcio, with Mario Gargiulo moved to Verona.
