In the statement on the website of the Premier League, it was stated that the condition of having at least 4 cases in a team that applied for a postponement was introduced because there were not enough players in the match squad.
It was stated that the decision will be implemented with the Burnley-Watford match on February 5.
Teams that could not have 13 players and a goalkeeper in their squads could request a postponement without any other conditions. With the Covid-19 cases, the application of the postponement of the teams that could not form a squad, citing the injured and the players who went to the national teams, drew the reaction of other clubs. 22 matches in the Premier League this season were postponed at the request of the teams