Some storylines to look out for ahead of the Sunderland game.
Blues' striking duo of Tom Hopper and Simon Cox have been a real plague on the opposition's defence so far this season and have notched up a total of 13 goals between them.
But in the last few games their partnership hasn't been going for the full 90 minutes and after last weekends red card against Coventry which saw Cox suspended for Tuesday nights home tie against Walsall. Leaving Hopper on his own up top.
Sadly after 32 minutes, the 24-year-old had to be taken off after injuring his knee during the game and won't be available for tomorrow's fixture. Blues eventually went on to win the Walsall game 3-0 without the two target men, but tomorrow's game leaves a hole in the striking position with Cox back from suspension and Theo Robinson and Shawn McCoulsky also available. It leaves one wondering who will start up top?
After a 2-0 defeat to Shrewsbury on Saturday 15th September, not many Blues fans would have been saying that come the end of October Southend would be closer to 1st place than 24th.
But after a six-game unbeaten run in the league Chris Powell's fortunes have taken a turn and into the right direction.
Blues are currently in 9th place with 23 points from 15 games, which isn't too bad considering they had 22 points from the same amount of games around this time during the promotion winning 2014/15 season. Could history repeat it's self from here on out?
Over the short history between Blues and the Blackcats there has always been something extra whenever a game takes place between the two sides.
The first season they battled heads ended in Sunderland doing the double over Southend, but the next time they met Blues came out with both wins. Since then neither side has won both games in the same season and suprsingly there has never been a draw between both teams. (Blues wins 6 - Sunderland wins 8) Could tomorrow's fixture bring some extra excitement?
It's been a while since we have faced the Blackcats with the last game between the two sides taking place in the 2006/07 season which is over a decade ago.
Since then a lot has happened at both clubs, Sunderland went on to become an established Premier League side with the likes of Jermain Defoe, Darren Bent and Steven Fletcher all going on to have prolific careers at the club.
Southend on the other hand faced back-to-back relegations and stayed in League Two for a number of seasons before winning promotion to League One via the 2014/15 Play-off finals.
But after all this time the power of football has brought both teams back together to once again face eachother in another league game. What will happen this time round?