[1][2][3] Lazzaro started his junior football at the St Mary's Sporting Club in Geelong,[4][5] where he played with long time friend and future AFL player Oliver Henry.
Lazzaro captained the Under 16 Victorian Country Team that played in Gold Coast in 2018.
[6] He also played for the Geelong Falcons in the NAB League,[7][8] where he totalled 8 games and an average of 20 disposals.
[10][11] Lazzaro debuted for North Melbourne in the opening round of the 2021 AFL season[12] as the medical substitution, where he replaced Aidan Corr.
[14] However, the next week saw him spend 78% of the game on the ground, returning 17 disposals, 3 marks and 4 tackles.