Mancini joined the Hawks USP3 team for the 2013-14 season and returned for the 2014-15 season. He posted four goals and 15 assists in a total of 58 games. This past season, he advanced to the Elite team and netted a goal and nine assists in 36 games.
Mancini hails from Coral Springs, FL, and is one of seven committed players on the team.