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Key points
• Southend take the lead in the second half through Ryan Leonard.
• Leyton Orient make four changes for the clash with David Mooney, Lee Cook, Martin Rowlands and Lloyd James all returning to the side. Charlie MacDonald is unavailable after being cup-tied.
•The winners of the two-legged match will go to Wembley for the final.
Leyton Orient line-up
Jones; Sawyer, Cuthbert, Baudry, Odubajo; Cox, Rowlands (Smith, 75), James, Cook; Mooney, Batt (Obafemi, 87)
Subs not used: McSweeney, Griffith, Clarke
Southend United line-up
Smith; Clohessy, Cresswell, Phillips, Barker; Hurst, Leonard, Reeves, Timlin (Spicer, 87); Assombalonga (Corr, 87), Woodyard
Subs not used: Lavery, Prosser, Bentley
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