The Daggers boss can be expected to name an unchanged line-up for the fifth consecutive game against the Shrimpers, kick-off 1pm, with Saturday's scheduled trip to Morecambe postponed due to a waterlogged pitch at the Globe Arena.
Still's side have won five of their last seven league fixtures, including their previous two, after only winning three of their previous 15.
And the manager has resisted the chance to freshen things up in recent weeks despite having a clean bill of health, and he is not expected to change that philosophy after his side have kept three clean sheets in four matches.
Italian striker Gianluca Gracco has signed on non-contract terms until January, with a view to a permanent deal, and he could find himself on the bench.
- Sports & Recreation