*Club domestic league appearances and goals, correct as of 18 December 2024 ‡ National team caps and goals, correct as of 23:00, 19 November 2022 (UTC)
Born in Vicenza, Mancini progressed through the youth ranks at the city's main club,[2][3][4][5] where he signed his first professional contract in July 2020, penning a three-year deal.[3][6] In the meantime, the forward also started training with the first team, under manager Domenico Di Carlo,[7][8] and featured for Lega Pro's under-15 national team.[9]
On 30 September 2020, Mancini made his senior debut for Vicenza, playing the first half of the Coppa Italia game against Pro Patria, which ended in a 3–2 win after extra time for his side.[10] At 16 years and 67 days, he became the club's second youngest player ever, behind only Nicola Rigoni (who had debuted at 16 years and 60 days).[4][11] On 4 January 2021, the forward made his league debut, coming in as a substitute for Stefano Giacomelli at the 80th minute of the Serie B match against Brescia, which ended in a 3–0 away win for his team.[12][13] At 16 years and 162 days, he became the youngest player to ever feature in a Serie B match.[12][14] Throughout the season, Mancini made four more senior appearances, including a start.[14][15] In the following campaign, the forward saw his playing time limited by injuries and tactical decisions: in the end, he gained a total amount of nine senior appearances, as Vicenza eventually faced relegation from the second tier.[4][5]
In the summer of 2022, Mancini attracted interest by several high-profile Italian and European teams:[4][5] after starting the pre-season at Vicenza,[16] and failing to agree personal terms with AC Milan,[4][17] he eventually joined Juventus on a permanent deal,[18][19] with the estimated transfer fee being between €2 million and €2.5 million.[4][20]
The forward was included in the under-18 squad that took part in the 2022 Mediterranean Games in Oran,[25] as the Azzurrini eventually won the silver medal after losing to France (1–0) in the tournament's final match.[27]
Mancini has been described as a complete center-forward,[2][4][11] who can play either as a standalone target man or in an attacking duo.[4] Despite being naturally right-footed,[2][3] he can also use his left foot as effectively.[2][11] Thanks to his height and his physique, he excels in heading and defending possession:[2][4][11] however, he can also take on his opponent with his technical skills and his athleticism.[4][11] Moreover, he has been regarded for his coordination, his off-the-ball movement and his finishing prowess, which provide him with a wide variety of options to find the net through, including acrobatic strikes and free kicks.[2][3][4][11][31]
