The brother of one of Manase Fainu’s Manly teammates has been charged over his alleged role in a brawl that resulted in the stabbing of a man at a Mormon church dance.

Jona Faingaa was charged with affray after being arrested by appointment at Liverpool Police Station on Thursday night. Faingaa, known as “Big Buck”, is the younger brother of Sea Eagles rookie Haumole Olakau'atu.

Olakau'atu is the best friend of Fainu and they played together twice this season after the former made his first-grade debut in the opening week of the finals against Cronulla. The pair are also lifelong friends with fellow Sea Eagles players Moses Suli and Tevita Funa.

There is no suggestion Olakau'atu had any involvement in the Wattle Grove incident.

In an interview with the Herald in September, Olakau'atu’s mother, Anna, said her son and Fainu were inseparable growing up.