I know of some people who read forum but are not on social media. For their information the Braintree fixture will be a 19.30 kick off at The University of Greenwich Avery Hill Campus.
Pure conjecture on my part but seeing E&B game on 16th has been moved to 21st it could be to give the pitch a bit longer to recover. The current weather conditions must be a pain for groundskeepers around the country.
