The right to be called the "real Bay" won't be the only thing on the line in Friday's clash between Bay of Plenty and Hawke's Bay in Rotorua.
The two unions have announced the teams will play for the Macrae-Shelford Bay Cup honouring Ian Macrae and Frank Shelford - two stalwarts of the game who played for the All Blacks and both provinces.
Macrae played seven matches for Bay of Plenty in 1962 before heading to Hawke's Bay to see out his rugby career, playing a further 85 matches between 1963 and 1971.
He played 45 matches for the All Blacks between 1966 and 1970.
Shelford pulled on the Bay of Plenty jersey 121 times between 1977 and 1987, however he wore the Hawke's Bay black and white hoops in 1983 for 12 games before returning to the Bay of Plenty to finish his playing career.