"Lee got a tug on his ankle and we will just have to wait and see how it settles down," said manager Steve Tilson.
Meanwhile, Southend's clash with Walsall, originally scheduled for January 9, will now be played on February 23.
Jose Mourinho discussed being under pressure, rumours of dissent within his Chelsea squad - and did not talk about Dr Eva Carneiro.
Press Association Sport's Declan Warrington takes a look at the main talking points in the Premier League this weekend.
Crystal Palace v West BromSaido Berahino has gone from hero to villain and back to hero again since the end
This week former Borussia Dortmund manager Jurgen Klopp rejected the chance to take over the Mexican national team.
10) Luis Suarez 4 Months Suarez was banned for biting Italy defender Giorgio Chiellini at the World Cup during a group match for Uruguay.
The Football Association instigated a four-game tour of Germany and Austria by a representative England team in November 1899.