Born in Ottawa, Sébastian Breza began his career with FS Salaberry on the island of Montreal at the age of 9.
In 2014, Breza made the move to Europe by signing with Italian club Monopoli, before going on loan to the Palermo academy in 2016.
In 2017, Breza signed for Serie D club Potenza Calcio and helped the team secure promotion to Serie C.
After a loan spell at Bologna FC, Breza officially joined the Rossoblu in 2020.
Breza made his first spell with CF Montréal on loan from Bologna FC from 2021 to 2022. In the 2021 Canadian Championship, he scored the winning penalty in the semi-finals against Forge FC to advance to the final. He then helped the Bleu-blanc-noir win the Canadian Championship against Toronto FC, winning the George Ross Trophy, awarded to the tournament's most outstanding player.
Following loans to Carrarese Calcio in Italy and Yverdon-Sport FC in Switzerland, Breza returned to the Bleu-blanc-noir on a permanent basis in January 2024.
Honours:
Winner of Canadian Championship 2021
George Ross Trophy recipient (Canadian Championship MVP) 2021
