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The 22-year-old was part of Blues' side that won promotion in the League Two play-off final at Wembley last season, but injury meant he missed the match.
The Harlow-born player started his career at Watford, before having loan spells at Brentford (twice), Wycombe Wanderers and Barnet, before joined the Essex side in summer 2013.
He has appeared in a Southend shirt 49 times so far.