Former Crawley Town midfielder Barry Moore is joining Lewes.
Moore, an England semi-pro international, has just returned from America where he has been playing professionally.
However, he will probably not play for the Rooks until around Christmas because of a knee injury.
Burgess Hill have completed the signing of former Albion defender Nicky Bridle on a one-year contract.
Bridle, who was recently released by the Seagulls, makes his debut at home to Rothwell Town. Tom Edmonds is ruled out tomorrow as he is playing for Sussex under-18s.
Withdean boss Bob Hitchcock admits he has probably lost top scorer Florian Mateos to Worthing. The French striker, who played for Rebels last season, made a goalscoring return in Tuesday's FA Trophy win at Cambridge City.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article