Parma Matteo born Mandorlini in
Como, Lombardy, when his father Andrea playing for
Internazionale. He started his career with
Emilia–Romagna side
Parma. Mandorlini has made one
Serie A appearance for Parma, that being Parma's 1–0 loss to
S.S. Lazio on 14 May 2006 during the
2005–06 season. That match was the last round of the season and Mandorlini substituted
Damiano Ferronetti in the 84th minute. In July 2007, he was loaned to
Pavia and sold to
Foligno in
co-ownership deal in August 2008. He started both legs of the relegation playoffs as a midfielder in 4321/433 formation. In June 2009, Parma bought him back and loaned to
Viareggio.
Piacenza In 2010–11 season, he returned to Parma and awarded no.27 shirt, which he also own that number in 2005–06 season. But on 31 August he was loaned to
Serie B club
Piacenza. He started his first start of the
2010–11 Serie B season on 16 October 2010, as right midfielder (ahead
Alessandro Marchi) in 4321/433 formation. The match Piacenza defeated
Crotone 1–0. In the next match he moved to left midfielder ahead
Tommaso Bianchi.
Brescia In June 2011, the last few days of 2010–11 financial year, he moved to
Brescia in co-ownership deal. Parma signed
Cristian Pedrinelli in exchange also in co-ownership deal. Both players 50% registration rights were valued €1.5 million. Mandorlini played 22 times in
2011–12 Serie B. In June 2012 Mandorlini left for Serie B newcomer
Spezia along with Parma team-mate
Raffaele Schiavi. On 31 January 2013 he was signed by
Grosseto. However Grosseto still relegated to
Lega Pro Prima Divisione. In June 2013 Parma gave up the remain 50% registration rights of Mandorlini to Brescia for free; Pedrinelli also moved to Parma outright for another €80,000.
Pisa On 18 July 2014 he was signed by Serie C club
Pisa.
Pordenone On 22 August 2015 he was signed by
Pordenone in a 2-year deal.
Seregno On 2 September 2021, he joined Serie C club
Seregno. ==International career==