The Bees, who know they will host near neighbours Chelsea in round four should they advance, really should have got the job done at Roots Hall a week last Saturday, having led 2-0, but they were forced to settle for a replay after a Barry Corr double.
Brentford, currently third in League One, are favoured by the bookmakers to be crowned champions of the English third tier come the end of the season and their recent form is excellent, particularly at Griffin Park.
It is ten wins and three draws in a run of 13 matches unbeaten in all competitions in front of their own fans and Brentford should prove too classy for a side struggling to hold their form in a lower division.
Southend are winless in five matches under Scottish manager Paul Sturrock and I’m finding it hard to understand how the Bees are anything like 1.75 to claim the win inside 90 minutes.
Well-backed in the last 24 hours to prevail, Brentford manager Uwe Rossler will obviously be fielding his big guns, with such a lucrative prize at stake, and his team can usually be relied upon to give their running.
It is just three defeats home or away since August and Brentford have kept three clean sheets in their four previous matches. Southend, in contrast, have shipped eight in the same period on their travels and everything points to a routine home victory.
3pts Back Brentford (vs. Southend) @ 1.73 (various)