Stand by for a couple of key clashes on the Sussex coast tomorrow as three of the county's sides look to enhance their title chances.

Second-placed Brighton host leaders Dartfordians in a London Three South East contest being billed as "huge" by the home side's player/coach Mark Jenkins.

Further west all eyes are on the derby between Bognor and Chichester which will decide the leaders of Four South East.

Brighton make changes in the pack as they chase the win which take them into top spot.

Hooker Tudor Ellis switches to loose head prop with triathlete David Wright coming in at No. 2.

Simon Peters returns at No. 8 so Danie Venter is dropped. James Wall and Adrian Murray complete the back row Jenkins said: "David's triathlon season is now over so he has come back to us as the fittest player in the club.

"Getting Simon Peters back is a big plus for us and our two flankers are the form players in the club at the moment."

He added: "This will prove to be out hardest game of the season so far. The next four weeks will be the turning point of our season because we have got to play the best three sides from Kent."

That powerful trio from across the border includes Sidcup, who host Eastbourne tomorrow.

Bognor's home clash with Chichester is being eagerly awaited in the south west of the county and could be a case of the best attack taking on the best defence.

That is how Bognor skipper Karl Flynn sees it.

Bognor give their first league starts to lock Craig Lamont and centre Luke Sullivan with their skipper declaring: "This is the time for us to start believing in ourselves.

"Chichester deserve to be top on what they have done so far but we are capable of beating them."

Hove could move to within a point of top spot given a home win over Folkestone and favourable results elsewhere.

They will have to do it without scrum half Jamie Finlason, who has a hamstring problem. Top try scorer Struan Robertson moves in from the wing to No. 9. With Ben Davies injured, Hove give league debuts to two players in their three-quarter line. Former Brighton player Greg Doughty plays in the centre with Liam Leevey getting a chance on the wing.

Haywards Heath's game at home to Winchester in London One is rated doubtful due to the sodden state of the Whitemans Green pitch. Heath make four changes to the pack following last week's cup win over Lewes.