At the international level, he represents Denmark U16. He plays primarily as a Defender.

His most recent move was a from AC Horsens Youth to Horsens U19 on 2024-07-01.

Throughout the UEFA U17 Nordic Tournament 2024, anton mandrup featured in 3 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.