Antoine was born in Toronto, Ontario, to parents Gerard Antoine and Jennifer Munro-Antoine. She grew up in the nearby city of Vaughan, where she attended the local high school.[4] Antoine played youth soccer for Vaughan SC and the Ontario Super REX program.[4][5]
College career
In 2019, Antoine moved to the United States and began playing college soccer with the Vanderbilt Commodores. She played in 10 games as a freshman before going down with an injury that also kept her out of international action.[4] Antoine returned to the field in September 2020 and made her first collegiate start on September 27, in a game against Tennessee.[4] She soon became a mainstay on the Commodores squad and started every single match for the next three seasons, including in Vanderbilt's 2022 NCAA Tournament campaign.[6]
Antoine was able to play a fifth year in 2023, taking advantage of her extra season of NCAA eligibility from the COVID-19 pandemic.[4] She played the season as a team captain and was named to the 2023 Mac Hermann Trophy watchlist.[7] Antoine finished her college career with one SEC first team and two second team honors. She also was named to the All-Region first team and third team in separate years.[4]
Club career
Antoine was among the list of players who registered for the 2024 NWSL Draft. However, she was not ultimately selected.[8] Instead, she trained with the Washington Spirit as a preseason trialist,[9] but did not make the team's final roster.[10]
IFK Norrköping
On March 11, 2024, Antoine signed her first professional contract with Swedish club IFK Norrköping, inking a one-year deal.[11] She made her Damallsvenskan debut against KIF Örebro DFF in the 6th week of the season.[12] Despite enduring a rocky start, Antoine was able to snag a starting position in Norrköping's squad and made 13 straight starts as a first-year professional.[12][13] On August 5, 2025, Antoine earned a one-year extension with the club.[14]
In her second season with Norrköping, Antoine cemented herself as a core piece of the team.[15] She was the only player in the Damallsvenskan to play every minute of the league, reaching 2,340 minutes across all 26 of Norrköping's matches.[15][16] She helped the team finish the 2025 Damallsvenskan in fifth place for the second straight year.[17]
AS Roma
On January 15, 2026, Antoine was announced to have signed with Italian Serie A club AS Roma through the summer of 2028.[16]
International career
Youth
Antoine made her youth debut for Canada at the age of fourteen, winning a silver medal at the 2016 CONCACAF Girls' U-15 Championship.[4] She has since gone on to play at multiple other youth levels, including as a member of the under-17 and under-20 squads.[18]
In 2018, Antoine was named to Canada's squad for the 2018 FIFA U-17 Women's World Cup.[19] During her team's semifinal match against Mexico, Antoine conceded a penalty kick after turning over the ball. Mexican midfielder Nicole Pérez converted the spot-kick, resulting in Canada losing the match, 1–0.[20] Antoine participated in the team's bronze medal game, in which they were defeated, 2–1, by New Zealand.[21]
During the same year, Antoine was part of the under-20 squad that reached fourth place in the 2018 CONCACAF Women's U-20 Championship.[22][23] She was again called into U20 training camp in 2019 in preparation for the 2020 FIFA U-20 Women's World Cup.[24] The U-20 world cup was later cancelled due to the COVID-19 pandemic,[25] but Antoine's possible participation had appeared dubious anyway due to an injury sustained in college play.[26]
Senior
Antoine received her first call-up to the Canadian senior team in August 2018 for a match versus Brazil the following month.[27][28] She was included on the bench during the match but was not called on to make an appearance.[29]
