Liverpool have had to cancel a training session on Tuesday due to a further outbreak of COVID-19
The Reds were due to hold training at 4pm at the AXA Centre on Tuesday but have had to cancel the plans following an outbreak.
Jurgen Klopp is currently isolating alongside first-team stars Joel Matip, Alisson Becker and Roberto Firmino as well as a trio of back room staff members.
It throws plans for Thursday’s Carabao Cup tie at Arsenal into doubt as well as Sunday’s visit from Shrewsbury Town in the third round of the FA Cup.
The Reds are due to play the Gunners at the Emirates in the first leg of the semi-final before they host Steve Cotterill's side at Anfield.
Discussions are believed to have been held with the EFL ahead of the semi-final first leg and a statement following that has been released.
The EFL confirmed Liverpool's request to postpone Thursday's Carabao Cup semi-final clash with Arsenal on Tuesday evening : "The League has this evening received a request from Liverpool FC to postpone Thursday’s Carabao Cup semi-final first leg versus Arsenal FC which will now be considered in accordance with the competition rules as set out at the start of the season alongside information submitted by the Club.
"We will look to confirm the League's position as soon as possible once the circumstances have been fully reviewed."
In a statement of their own requesting postponement, Liverpool said: "The Reds have formally requested to the EFL that the fixture is rescheduled after further suspected positive tests were registered among players and staff, allied to other factors impacting selection, including illness and injury.
"In response, the club halted preparations at the AXA Training Centre, meaning Tuesday’s first-team training session was cancelled.
"Among the considerations which led to today’s application to the EFL is the need for travelling supporters to be given as much notice as possible of any potential postponement.
"With no prospect of the current situation improving ahead of Thursday’s fixture and the potential for it to worsen, the club considers it both prudent and reasonable to ask for the fixture to be rescheduled.
"Liverpool FC will offer a further update on the application process, as well as the resumption of training, in due course."
Liverpool are already without Joel Matip, Alisson Becker and Roberto Firmino for the game in London after they all tested positive last week.
Jurgen Klopp, and some members of his backroom team, are also isolating after testing positive for the virus and missed Sunday's draw at Chelsea as a result.
But in order for the postponement to be granted, EFL rules state that clubs must have less than 14 players available - including a goalkeeper - from their registered first-team squad.
However, players under the age of 21 who are not on their side’s first-team squad list, but who have played at least one league match this season, may be counted in the 14.