Ghanaian defender Seth Owusu and his Golden Arrows got relegated in the South African Premier League after losing 1-0 at AmaZulu on Tuesday.
Arrows needed a miracle to stay afloat after a difficult campaign which has seen them pick only 21 points from 29 games.
Dlamini scored the only goal of the match ten minutes from time to hand them the precious win in Durban.
Owusu, who previously played for Ghanaian giants Hearts of Oak, failed to make the bench despite recovering fully from an ankle injury.
Compatriot John Arwuah, who plays for Ama Zulu was replaced in the 56 minute.