Haverhill go into their league match at Norwich Medics on Saturday (2pm) knowing a victory could potentially take them into third place.
The Greene King IPA Eastern Counties Division Two meeting also gives Haverhill the chance to avenge the 24-19 defeat suffered at the hands of their opponents on September 29.
Norwich currently occupy fifth spot in the division, just one point and one place above Haverhill.
A win would be enough to see Haverhill not only leapfrog Norwich, but could elevate them to third place above both Mistley and Norwich Union.
Haverhill currently have 16 points, with Norwich Union on 20 and Mistley on 21.