Tatsuya Yamaguchi

As of the end 2022 season.

After graduating from Tokai University Sagami High School, Yamaguchi signed for Gamba Osaka ahead of the 2018 J1 League season and was handed the number 35 jersey. He debuted for Gamba's Under-23 side in week 2 of the 2018 J3 League, coming on as a 73rd-minute substitute for Reo Takae in a 4–1 defeat away to Kagoshima United. In total he played 31 out of 32 league games, starting in 29 of them to help his side to 6th place in the final standings. He didn't make any appearances for Gamba Osaka's senior side during his debut season, but he did make the substitutes bench on 2 occasions during the 2018 J.League Cup without making it onto the playing field. On 1 December 2022, Yamaguchi officially transferred to the J3 club, Ehime FC from Tokyo Verdy for upcoming 2023 season.