Maccelli was a fourth-round pick in 2019 and has played very well in his first season in North America. Maccelli leads Tucson (AHL) with 21 points (7G / 14A) in 21 games this season.

The Coyotes selected Maccelli in the fourth-round of the 2019 draft. The 19-year-old winger finished his first season in the Finnish Elite League with 13 goals and 17 assists (30 points) in 43 games with Ilves Tampere. While representing Finland in the World Juniors, Maccelli had two goals and three assists (five points) in seven games.