Sewell claims self-defence in Nine assault

Thomas Sewell has claimed he was defending a friend when he attacked a Nine Network security guard. (Aap Image/AAP PHOTOS) (AAP)

A neo-Nazi leader who claims he bashed a Nine Network security guard in self-defence will have to wait a week longer to learn his fate.

Thomas Sewell claims he was defending his friend when he attacked the guard outside the Nine Network's building in Melbourne.