|Date of birth||17 March 1983|
|Place of birth||Como, Italy|
|Height||1.83 m (6 ft 0 in)|
|2002–2003||→ Viterbese (loan)||24||(0)|
|2003–2004||→ Prato (loan)||30||(1)|
|2006–2007||→ Chievo (loan)||32||(2)|
|2009–2010||→ Udinese (loan)||26||(0)|
|2011||→ Cesena (loan)||15||(1)|
|2011–2012||→ Chievo (loan)||28||(2)|
|2000–2001||Italy U-18[nb 1]||3||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 17 January 2016.
A product of European giants A.C. Milan's youth system, Sammarco never played a game for the side, serving consecutive loans: from 2002–04 in Serie C1, and from 2004–07 with first division side A.C. ChievoVerona. Cheivo also purchased half of the registration rights for €1.1 million (Martino Olivetti plus €100,000) in June 2003. In June 2006 Milan bought back Sammarco for undisclosed fee, with Olivetti moved back to Chievo for €250,000.
On 22 June 2007, U.C. Sampdoria announced Sammarco, in another co-ownership deal with Milan, for €1.5 million fee and a reported €400,000 wage. In Sampdoria, he broke through, playing almost every league game in a team that achieved UEFA Cup qualification, under coach Walter Mazzarri.
In June 2008, Sampdoria gained full ownership of Sammarco for another €2.5 million, made his valued increased to €4 million (made Milan register a financial income of €1 million as the half retained had increased from €1.5 million to €2.5 million) Sammarco also signed a new contract which lasted until 30 June 2013 during 2009–10 season. On 25 August 2009 he was loaned to Udinese for one season, for a reported wage of €250,000. Sammarco was a sub under Luigi Delneri at the first match of 2009–10 Serie A.
On returning to Sampdoria for the beginning of the 2010–11 season, he did not appear in any games, as the club now hired Domenico Di Carlo as coach. However, his wage was increased to €700,000. He was loaned to Cesena on 30 December 2010 for the rest of the season.
He scored a goal in the first two games of 2011–12 Coppa Italia for Doria, however on 24 August he returned to Chievo in exchange with Simone Bentivoglio, re-uniting Di Carlo. Sammarco's wage was also reduced to €250,000 again.
Sammarco was first capped for the Italy national under-21 football team in August 2005, against France, and was part of the final squad in the 2006 European Championship, making three appearances as a starter.
- U17 prior 2001 equivalent to today U18
- "2006 Bilancio" [2006 Annual Report] (in Italian). AC Milan. 2007. Archived from the original (PDF) on 25 April 2011.
- "2007 bilancio" [2007 Annual Report] (in Italian). A.C. Milan. Archived from the original (PDF) on 25 April 2011.
- "Per il centrocampo della Samp c'è Paolo Sammarco" [Sammarco joins Samp midfield] (in Italian). U.C. Sampdoria. 22 June 2007. Retrieved 6 May 2016.
- "Ingaggi dei 494 giocatori di A Kakà è Paperon de' Paperoni". La Gazzetta dello Sport (in Italian). 11 September 2007. Retrieved 6 May 2016.
- "2008 Annual Report" [2008 Annual Report] (PDF) (in Italian). A.C. Milan. April 2009. Retrieved 11 June 2011.
- U.C. Sampdoria S.p.A. bilancio (financial report and accounts) on 31 December 2009 (in Italian), PDF puchased from Italian C.C.I.A.A.
- "Eto'o re di denari del campionato". La Gazzetta dello Sport (in Italian). 3 September 2009. Retrieved 6 May 2016.
- "Tutti gli stipendi di serie A Ingaggi tagliati? Non è vero". La Gazzetta dello Sport (in Italian). 7 September 2010. Retrieved 6 May 2016.
- "Tomorrow, Paolo Sammarco will join the group" (in Italian). AC Cesena.
- "Sfondato il miliardo I soldi delle tv in ingaggi". La Gazzetta dello Sport (in Italian). 8 September 2011. Retrieved 6 May 2016.
- "Mercato: per il centrocampo aquilotto ecco Paolo Sammarco" (in Italian). Spezia Calcio. 9 August 2012. Retrieved 25 May 2014.
- "PAOLO SAMMARCO AL FROSINONE CALCIO" (in Italian). Frosinone Calcio. 21 January 2015. Retrieved 1 May 2016.