[2] Born in Rome, capital of Italy, Sansovini started his professional career at A.S. Roma.

[citation needed] In mid-2000 he left for Serie C2 club Viareggio in a co-ownership deal for a peppercorn fee of 1 million Italian lire (about €516) along with Andrea Giallombardo.

(Marcos de Paula, 4 goals in half season; Leandro Lázzaro, twice; Claudio Salvi, once) However Pro Sesto re-admitted to Italian third-tier as numbers of club was expelled from that division due to different reasons.

Despite remaining in Serie C1, Sansovini was sold to fellow third-tier club Grosseto.

Despite the rotation of the squad, Pescara collected the most goals among the group and missed the promotion both by aggregate result against Perugia and 1 point penalty.

He failed to score and he was surprisingly sold to third division club Pescara on the last day of summer transfer window.

On 31 August 2009, he returned to Pescara in a definitive deal, in a four-year contract for €600,000 transfer fee,[7] rejoining former Grosseto coach Antonello Cuccureddu.

[9][10][11] That season, Sansovini played 41 rounds with 16 goals, scoring his first ever hat-trick on 22 October 2011 in Pescara's 4-1 win against Ascoli.

Pescara also signed Juventus wonder-kid Ciro Immobile and Napoli rising star Lorenzo Insigne.

Despite failed to keep Immobile and Insigne whom both joined Pescara in temporary deals, as well as coach Zeman, Sansovini also left the club on 21 June 2012 to Serie B newcomer Spezia for €150,000 fee in a two-year contract.

[19] On 2 February 2015, Sansovini returned to Pescara in a temporary deal; Aniello Cutolo moved to opposite direction on the same day.

[22] On 27 January 2016, Sansovini was signed by Lega Pro club Cremonese in a temporary deal.

In November 2022, Sansovini is appointed as head coach of Ortona, a club playing in the Abruzzo Eccellenza league.

In August 2023, Sansovini joined Pineto and is currently in charge of the club's Primavera team.