Revell, off to be a Chairboy?
Revell had previously made 43 appearances for the Shrimpers and scored just four goals following a £150,000 move from Brighton in January 2008.
He then went on loan to League One rivals Swindon Town last September where he made 12 appearances and scored twice in one match against Brentford.
The club have now confirmed Alex has had his contract cancelled by mutual consent.
Source: Team Talk