Bristol City defender Damion Stewart is suspended, while striker Sam Vokes has been ruled out through injury.
David James may be among those rested for the game by Robins boss Steve Coppell, with Dean Gerken expected to start in goal.
MATCH FACTS
Head-to-head
• These clubs have clashed 72 times. City have won 36, and Southend 27.
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Southend
• Southend have gone out in the first round in eight of the last 11 years, but only once in the last four seasons.
• Paul Sturrock has won only one of nine League Cup matches as a manager.
• The Essex club have won a third of their League Cup ties (40 of 120), and are two goals away from conceding 200 in the competition since first taking part 50 years ago.
Bristol City
• City are targeting a place in the second round for the fifth time in seven seasons, and the fourth year in succession.
Source: BBC Sport
Source: BBC Sport