The game which was set to be played on January 19th at 7pm will now be rearranged for a future date.
An EFL statement reads:
Carlisle United’s next three Sky Bet League Two fixtures against Mansfield Town (Saturday 16 January), Leyton Orient (Tuesday 19 January) and Forest Green Rovers (Saturday 23 January) have been suspended.
The Club informed the EFL that they would be unable to fulfil the fixtures following recent positive COVID-19 tests and the requirement for players and staff to self-isolate as per EFL and Government guidance in order to mitigate against the risk of further infection.
The circumstances surrounding the postponements will now be the subject of an investigation in accordance with EFL Regulations.
Revised dates for the rearranged fixtures will be confirmed in due course.