Gosport & Fareham host London one south basement club Old Colfeians in a crunch clash at Gosport Park (3pm).
Even at this early stage of the season, the two clubs at the foot of the table know there is a lot at stake.
The winners will boost their survival chances but for the losers, defeat will be a huge blow.
Gosport coach Mark Wells insists there is a mini-league forming at the bottom which includes Havant and the Gosport Park side.
‘We have to make sure we finish at the top of this group to stay up,’ said Wells.
‘All we need is to pick up a second win to get some momentum going.
‘I have said all along we will get stronger as the season goes on and it is starting to happen.’
Wells has been encouraged by what he saw last weekend.
His outfit were leading 7-5 going into the final three minutes of normal time after putting in a strong performance.
Wes Dugan and Ash Burton were back in the Gosport ranks and they contributed with big performances.
But Gosport ran out of gas and it all went downhill as Sidcup eventually finished with a 24-7 success.
Wells added: ‘At Sidcup last week we were the better team and should have won, only to lose in the final 10 minutes.
‘The return of experienced pair Ash Burton and Wes Dugan made a big difference and it showed we can compete with teams at the top end of midtable.’
Old Colfeians have lost all seven of their league games so far, conceding nearly 300 points.
n Fresh from their RFU Vase success against Croydon, United Services host Andover in what promises to be a thrilling Hampshire one contest at Burnaby Road (3pm).
The visitors are unbeaten and, with Services only slipping up once, a titanic struggle is expected.
Coach Simon Burns has opted for experience, bringing himself, Will Blackett and Trev McAllister into the starting line-up.
Hooker Andy Carter, recently signed from Havant, could make his debut while outside-half Andy Webster, centre Jake Webster and full-back Bob Hoskins are all likely to play.
‘This will be a very tight game because Andover only came down into this league at the end of last season,’ said Burns.
‘Both teams are going well, though, annoyingly, we lost at Millbrook.
‘It was one of those games when you come away thinking how on earth did we lose that?
‘This is our toughest test so far and we have opted for more experience.’