Monday night's Premier League fixture between Everton and Manchester City has been called off due to an outbreak of coronavirus in the visiting squad.
Pep Guardiola 's side were due to face the Toffees at Goodison Park at 19.45 but, after four positive tests on Thursday, it appears the virus has spread.
City confirmed that they have returned "a number" of positive cases which could lead to the further spread of Covid.
As a result the match will not go ahead, with the game to be played at a later date.
A statement said: " Manchester City FC can confirm that this evening’s Premier League fixture at Everton has been postponed.
"After the latest round of Covid-19 testing, the club returned a number of positive cases, in addition to the four already reported on Christmas Day.
"With the security of the bubble compromised, there posed a risk that the virus could spread further amongst the squad, the staff and potentially beyond.
"Based on strong medical advice the Premier League, in consultation with both clubs, have decided to postpone the fixture.
"All positive cases involving players and staff will observe a period of self-isolation in accordance with Premier League and UK Government protocol on quarantine.
"The first team training ground at City Football Academy will close for an indeterminate period, with the squad and associated bubble undergoing testing before any decision is made for training to resume.
"Everyone at the Club wishes all of our colleagues a speedy recovery ahead of their return to work, training and competition."
