The Football League has agreed to the postponement because Andy King, Nicky Adams (Wales Under-21s) and Aleksandar Tunchev (Bulgaria) have been selected for international duty that weekend.
A new date will be advised in due course.
Colchester away POSTPONED
The match, due to be played on Saturday week, Sep 6th, will have to be rescheduled because Leicester have three players called up for International duty.