Marc-Antoine has been evolving in the structure of Baseball Quebec for many years. Originally from Trois-Pistoles, he came to finish his high school studies in the baseball program in Quebec, now called "Les Canonniers de Québec". In his second year of college, he entered the Baseball Academy of Canada (ABC). His career then took him to Northeastern Oklahoma A&M College, then to the University of Pittsburgh. In the 2015 MLB Draft, the Oakland Athletics made him their 28th round pick; he played 3 seasons for the organization. Since September 2017, Marc-Antoine has passed on his passion to young hopefuls by being a pitching coach for the ABC. In 2021, he was named the ABC's performance director. He is currently completing his bachelor's degree in athletic therapy at Concordia University.