Veteran centre Jerome Ropati travelled as 18th man with the Vodafone Warriors for their NRL clash against Manly in Gosford on Sunday.
Also out of the side are regular standoff Tuimavave (hamstring) and second rower Sam Lousi (knee) while back rower John Palavi is missing along with fullback/wing David Fusitua, who was also out last week.
With Ropati unavailable coach Willie Swann has named Agnatius Paasi, usually a prop or back rower, in the centres alongside the imposing Sio Siua Taukeiaho.
Steve Waetford moves from fullback to standoff for Tuimavave while Tangi Ropati switches from the wing to the custodians position and Atelea Nafetalai is brought onto the wing.
With both second rowers out, Vodafone Warrior Sebastine Ikahihifo is paired with Vodafone Junior Warrior Raymond Faitala-Mariner and Murray Iti starts at loose forward.
Of the starting line-up used in last Saturdays 44-10 win over Wentworthville the only players surviving in the same positions are right winger Viliami Lolohea who scored four tries last week Taukeiaho, halfback Pita Godinet and the all-Vodafone Warriors front row featuring the vastly-experienced Russell Packer, Alehana Mara and Charlie Gubb.
Two years ago the Vulcans met the Bulldogs in the NSW Cup grand final but their relative positions in the competition are a lot different now. While the Vulcans are in the race for the finals lying seventh, the Bulldogs are running last with just four wins so far this year.
AUCKLAND VULCANS v CANTERBURY-BANKSTOWN BULLDOGS
Mount Smart Stadium No 2, Auckland
12.50pm, Saturday, August 10
Referee: Aaron Donald
3SIO SIUA TAUKEIAHO
COACH: WILLIE SWANN