The Swamp Foxes are amped for their first tilt at the Ranfurly Shield since 2007 and their 14th since 1951.
Thames Valley are coming off a solid 19-12 win over the Cook Islands on June 16 and will leave nothing out on the track against their more vaunted neighbours Counties Manukau in Pukekohe tomorrow night.
"The guys are really excited. We've had a group of about 35 and everyone was super-keen to make the squad for the challenge," said Thames Valley coach and former flanker Hayden Roe.
The weather forecast is dire so that may aid Thames Valley's game plan, though Roe was hoping for a dry, fast track "for the spectators".
The Swamp Foxes, who lost 69-0 to North Harbour in their last crack, have just one player remaining from that game - first five and the province's all-time leading scorer David Harrison - but have a mix of youth and experience, led by lock Brett Ranga. Halfback Aaron McDonald is pushing 42 and a century of games, and indeed played in the 1999 Shield challenge against Waikato. Wing Watisoni Lotawa appeared in Ranfurly Shield games for Auckland in 2008, while Lance Easton has played for the Steelers.