On Thursday, Aston Villa was forced to close their training ground after two rounds of testing returned many positive coronavirus cases among players and employees.
After being regularly screened on Monday, a significant number of first-team players and workers returned positive tests and immediately went into isolation, Villa said in a statement.
“The second round of testing was carried out immediately and produced more positive results today.”
The FA Cup third-round tie for the Premier League club against Liverpool on Friday is now at risk of being postponed.
“First team training ahead of tomorrow’s FA Cup match with Liverpool was canceled,” added Villa’s comment.
“Discussions are ongoing between medical representatives of the Club, the Football Association and the Premier League.”
With growing doubts over whether the English top-flight will complete the season on time, Villa is the fourth Premier League club to experience a Covid-19 outbreak in the last two months.
Due to outbreaks at Manchester City and Fulham, three Premier League matches were postponed last week.
On Tuesday, during the week between December 28 and January 3, a record high of 40 positive tests was detected among Premier League players and employees.
Due to a variety of promising cases at the League One club, Southampton’s FA Cup trip to Shrewsbury has already been deferred.
After nine positive tests for first-team players and workers, Wayne Rooney’s Derby will complete their fixture at Chorley with a youth team.