Swansea informed the EFL that taking into account the injuries and positive COVID-19 cases within their squad, the club does not have a sufficient number of players available in order to fulfil the fixture.
In light of the increased rate of transmissions from the Omicron variant of COVID-19, the EFL will review the circumstances surrounding the postponement and work with affected clubs.
A rearranged date for the fixture will be confirmed in due course.