Havant journey along the south coast to Hove, looking to bounce back to winning ways in London south one (3pm).
Will Knight’s side suffered a first defeat against powerful Chichester last week – and the coach is looking for a reaction from his players.
‘After winning our first two games we knew it would get tougher,’ said Knight.
‘Chichester gave us a taste of what we can expect to come up against from the top sides.
‘There are some good, very-well resourced teams at this level looking to move up.
‘We are not daunted by that because we feel we can get there but we will have to play a lot better.’
Havant include Royal Navy centre Darren Bamford for the first time this season which means James Read moves to full-back in place of Pete Living.
With Nathan Bellman injured, Luke Barfoot switches to number eight and Richard-Burgess Kelly comes in at number seven.
‘Against Gosport & Fareham we were very aggressive and confrontational at the breakdown,’ said Knight.
‘That wasn’t the case against Chichester and I am looking for us to bring a greater physicality to the party at Hove.’
HAVANT: Lewis Osborne, Pete Austin,
Ron Elsmore, Dan Roberts, Ross Parkin,
Dom Bellman, Richard Burgess-Kelly,
Luke Barfoot, Liam Davenport, Joel Knight, Loz Blackburn, Grant Morris, Darren Bamford, Dickie Duke, James Read. Reps:
Jack Ward-Golden, Alex Bruce,
Portsmouth are without number eight Matt Morgan, who is on holiday, for their visit to Teddington in London south west two.
The Hilsea-based club made a good start in their bid to bounce back up at the first attempt with a hard-fought win against London Cornish last weekend.
Coach Ian Chandler is expecting an equally-tough encounter in south London.
‘Teddington look as though they are going to be one of the top sides,’ said Chandler.
‘We got the start we wanted and now must look to build on it. I am looking for a bit more discipline because we conceded 19 penalties last week.’
Prop forward Dan Sargent makes his first appearance of the season after spending the summer with Portsmouth’s link club Taraga Sports in New Zealand.