Shrimpers at home for Posh
Peterborough have been handed a home draw against Southend in Round One of the Capital One Cup.
Darren Ferguson's side will host the Shrimpers in the week commencing August 13.
However, if mutually agreed, the Football League will consider requests to play on Saturday August 11 or Sunday, August 12.
Southend finished fourth in npower League Two last season, missing out on automatic promotion by just one point. They then lost in the play-offs to Crewe, who went on to win promotion at Wembley.