Antonoglou began his youth career with West Toronto SC, where he was scouted by Toronto FC Academy coach Danny Dichio,[1] and joined the academy in January 2015.[2][3] He is of Greek descent.[4][5]
Club career
While with Toronto FC Academy, he debuted for the senior academy team, Toronto FC III in League1 Ontario on September 18, 2018 against Vaughan Azzurri.[6] He made his debut at the professional level with Toronto FC II in USL League One in 2019 against the Richmond Kickers.[7] He officially joined Toronto FC II, signing his first professional contract in July 2020.[8] After recording his first professional assist on May 22 against North Texas SC, he scored his first professional goal on May 26 against FC Tucson.[9][10] On April 15, 2022, he signed a short-term four-day loan with the first team, Toronto FC, ahead of their Major League Soccer match against the Philadelphia Union,[7] but was an unused substitute.[11] He signed additional short-term loans on April 23, April 29, and May 4.[12][13][14] and made his first appearance for Toronto FC on April 24, 2022 against New York City FC, in a substitute appearance.[15] He signed a permanent contract with Toronto FC on May 7.[16] He was later loaned back to the second team on May 14.[17] With the second team, he scored a brace in the Conference Finals on October 2, against Columbus Crew, first scoring a free kick in the final seconds of second half injury time to tie the game, and then scored a goal from the midfield line in extra time, although Toronto FC II ultimately was defeated 3-2.[18][19] In 2023, he was again loaned to the second team.[20] At the end of the 2023 season, the club declined his option for the 2024 season.[21]