In New Zealand's first ever hosting of the championship bout, Parker, 24, will fight Mexican Andy Ruiz, 27, for the title at Auckland's Vector Arena.
Ruiz, is unbeaten in 29 fights with 19 knockouts while Parker has an unbeaten run of 21 fights with 18 knockouts.
RNZ reports the atmosphere in South Auckland this week is reminiscent of when local fighter David Tua took on three-time heavyweight world champion Canadian boxer Lennox Lewis for the WBC, IBF and IBO titles in 2002.
