Part of Port Adelaide's Next Generation Academies owing to his South Sudanese background, Frederick is a flashy defender that has shown glimpses of his run and carry ability. He was part of the Eagles' under 18 SANFL premiership in 2018 and also a member of the national championship-winning under 18 South Australian side before debuting with Port Adelaide in 2021.

He had an impressive debut against St Kilda where he racked up 23 possessions and 6 marks and managed another 7 games on the year. He provides a spark down back by generating rebound and always wanting to use his speed and agility to move the ball up field, traits of which make him a valuable asset to the backline when he is called upon. With defenders like Riley Bonner and Dan Houston potentially looking at more time in the midfield this season, Frederick will be wanting to prove he is ready to make himself a more permanent spot down back.