Blues boss is aiming to topple the League Two 'giants' on Saturday at Fratton Park.
Southend United manager Phil Brown hopes Blues have turned a corner following the Blues' win at Oxford United last week.
And the boss is aiming for Southend to continue their good form in Sky Bet League Two when they travel south to take on Portsmouth – a club Brown describes as 'giants' - at Fratton Park
“We conceded a couple of goals last week, which was a disappointing part of the game. In the main, we had the nous, mentality and the make up to make sure we got over the winning line at Oxford United,” Brown said.
“They're massive, and real giants in terms of the levels of support, the stadium and the history. There's a lot of pressure playing for Portsmouth and I think that's a problem for them. Andy's got his feet under the table now and has brought in a few fresh faces.
“It won't be an easy game. There will be over 15,000 at the game there and they are dangerous in the final third – bringing in Matt Tubbs was a real statement of intent from them.
“The game down there last season was a real springboard for success and we'll be hoping for similar this campaign. I think the best is yet to come from this group of players.”
On the transfer window, Brown has already made his moves to bolster the strikeforce and defence, following the arrivals of Joe Pigott, Jake Cassidy and Adam Barrett, and the boss is expecting more to come in at Roots Hall.
“We're still on the lookout. We're wanting to improve and strengthen.
“We're still short at full back. John White can play anywhere across the defence, Ben Coker's come back and we have Jerome. We may also be looking at one more striker as well.
“We've had interest from all the transfer listed players. We'll be looking for the right moves for the players. We have made the decisions on those players. We want to help them all in their careers.”