Walsall moved to second in the League One table tonight.
The Saddlers won 2-1 at Doncaster Rovers to go second, a point behind the leaders Burton Albion.
Southend are now on 44 points, the same as sixth placed Millwall after a 2-1 win at Shrewsbury Town.
Port Vale, who face Coventry City on Sunday are up to eighth after beating Swindon Town 1-0.