West Ham head to League One leaders Wigan in the FA Cup fourth round this afternoon.
Southend United host Scunthorpe United in League One
Colchester United are away to Port Vale in League Two.
In the National League South Chelmsford City take on Hampton and Richmond Borough
Braintree Town go up against Welling United
East Thurrock United play St Albans City and Concord host Eastbourne.
And in the Isthmian Premier Billericay Town are up against Tooting and Mitchum United