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Southend United worked their way into the hat with a comfortable 4-0 win against Truro City on Saturday.
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And Kevin Maher's side will discover their next opponents in the competition tomorrow.
The draw will be made live on TalkSPORT 2 at around 5pm and is being hosted by Olly Clink and ex Shrimpers winger Adrian Clarke who will be drawing the balls.
There will be 32 clubs in the draw with fourth round matches taking place on Saturday 10 January.