|Date of birth||14 July 1995|
|Place of birth||Borgo a Mozzano, Italy|
|Height||1.84 m (6 ft 0 in)|
|Spezia (on loan from Atalanta)|
|2015–2016||→ Chievo (loan)||4||(0)|
|2017–2018||→ SPAL (loan)||19||(0)|
|2018||→ SPAL (loan)||10||(0)|
|2018–2019||→ Bologna (loan)||17||(1)|
|2019–2020||→ Cagliari (loan)||18||(0)|
|2020–||→ Spezia (loan)||1||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 16:45, 2 June 2021 (UTC)|
Born in Lucca, Mattiello joined the Juventus youth system as a 13-year-old after impressing in the youth squads of Lucchese, where he had played for four seasons; he had previously also played for Valdottavo. He was also a talented junior tennis player at the time, but chose to concentrate on football instead. He won the Coppa Italia and Supercoppa with the Juventus Primavera side in 2013.
On 9 November 2014, Mattiello made his debut for the first team, coming on as a late second-half substitute for fellow youth product Claudio Marchisio in the 7–0 thrashing of Parma. He was sent to Chievo Verona on loan in February 2015 to gain more playing time, but his loan spell was cut short when Radja Nainggolan broke his leg in the club's game against Roma on 8 March, and he was ruled out for the rest of the season. On 3 July 2015, an agreement was reached between Juventus and Chievo, that would see Mattiello's loan with the latter club renewed for the following season. He returned to action on 19 October, starting in a 3–2 home loss to Genoa. Three days later, however, he suffered another serious injury in training. In July 2017, Mattiello was loaned out to S.P.A.L. for the 2017–18 season.
Atalanta and loans
On 31 January 2018, Mattiello was signed by Atalanta, who agreed to keep him on loan with S.P.A.L. until the end of the season. On 20 July 2018, Mattiello joined Bologna on loan from Atalanta until 30 June 2019. On 23 September, he scored the first goal of his career, the opener in a 2–0 home win over Roma in the league. On 10 July 2019, Mattiello was loaned out to Cagliari. On 15 September 2020, he joined Spezia.
Since 2010, Mattiello has made 18 appearances for Italy at youth level; he managed six appearances and one goal with the Under-16 team (which came against Ukraine on 16 October 2010), eight appearances with the Under-17 side, and four with the Under-20 side.
Style of play
Once considered to be one of the most promising young Italian players in his position in the media, Mattiello is capable of playing as a full-back or winger on either flank.
|Chievo (loan)||2014–15||Serie A||3||0||0||0||–||–||3||0|
|SPAL (loan)||2017–18||Serie A||29||0||2||0||–||–||31||0|
|Bologna (loan)||2018–19||Serie A||17||1||2||0||–||–||19||1|
|Cagliari (loan)||2019–20||Serie A||18||0||0||0||–||–||18||0|
- Andrea Bonatti (14 November 2014). "Mattiello, da Valdottavo allo Juventus Stadium" (in Italian). Il Tirreno. Retrieved 20 October 2018.
- Simone Manzi (25 November 2014). "Federico Mattiello: dal TC Bagni di Lucca alla Juventus FC in Serie A" (in Italian). www.ubitennis.com. Retrieved 20 October 2018.
- "Federico Mattiello in prestito alla Spal" (in Italian). www.juventus.com. 3 July 2017. Retrieved 20 October 2018.
- "Juve's magnificent seven". Football Italia. 10 November 2014.
- "Nainggolan on Mattiello clash". Football Italia. 8 March 2015. Retrieved 20 October 2018.
- Nicolò Schira (10 March 2015). "Mattiello: "Con Nainggolan tutto chiarito, sono carico per tornare"" (in Italian). La Gazzetta dello Sport. Retrieved 20 October 2018.
- Gianluca Losco (3 July 2015). "UFFICIALE: Chievo, torna Mattiello in prestito con riscatto e controriscatto" (in Italian). www.tuttomercatoweb.com. Retrieved 20 October 2018.
- Alessandro De Pietro (21 October 2015). "Chievo, riecco Mattiello 7 mesi dopo: "Ma ora basta parlare dell'infortunio"" (in Italian). La Gazzetta dello Sport. Retrieved 20 October 2018.
- Alessandro De Pietro (22 October 2015). "Chievo, non c'è pace per Mattiello. Frattura composta della tibia" (in Italian). La Gazzetta dello Sport. Retrieved 20 October 2018.
- "Acquistato a titolo definitivo Mattiello, resterà in prestito alla Spal fino a fine stagione" (in Italian). www.atalanta.it. 31 January 2018. Retrieved 20 October 2018.
- "Mattiello on loan to Bologna" (in Italian). TuttoMercatoWeb.com. Retrieved 20 July 2018.
- "Dalla Roma alla Roma: Mattiello festeggia il primo goal in A" (in Italian). Goal.com. 23 September 2018. Retrieved 20 October 2018.
- "Official:Mattiello joins Cagliari". Football Italia. 10 July 2019.
- "Atalanta, ufficiali Mattiello e Piccoli allo Spezia" (in Italian). Corriere dello Sport. 15 September 2020.
- "Convocazioni e presenze in campo - Mattiello Federico" (in Italian). FIGC.it. Retrieved 14 April 2018.
- "Federico Mattiello".
- "F. Mattiello". Soccerway. Retrieved 18 May 2017.
- "Coppa Italia Primavera 2012/13". Soccerway. Retrieved 18 July 2013.
- "PSG have the will; Juventus show improvement". Al Kass. Archived from the original on 17 July 2013. Retrieved 18 July 2013.
- "Al Kass Awards 2012 Results". Al Kass. Archived from the original on 4 August 2013. Retrieved 18 July 2013.