In 1984 Tunks left Souths and went to Canterbury-Bankstown where Warren Ryan built a team around Tunks and Peter Kelly as prop forwards to create a style of play known as "Wozzaball", with the team nicknamed "The Enforcers" due to the power of their defence, which at the end of the 1984 season conceded just a solitary penalty goal in almost four complete games.
In 1984, Tunks left Souths and moved to Canterbury-Bankstown where Warren Ryan built a team around him and Peter Kelly as prop forwards, creating a style of play known as "Wozzaball". The team was nicknamed "The Enforcers" because of their strong defense, which only conceded one penalty goal in almost four games during the 1984 season.