Arsenal are confident players and staff will be cleared of coronavirus ahead of Saturday's trip to Brighton.
The Mirror says four members of staff and a small number of first team players - the club say less than five - have been put into self isolation until Thursday after Arsenal postponed their game at Manchester City.
The biggest fear among clubs and the Premier League is a player testing positive because that would mean the club would have to effectively be shut down for two weeks - and threaten the whole of the league programme being completed.
It comes after Olympiacos owner Evangelos Marinakis publicly admitted he had contracted the coronavirus and had attended the Emirates for their Europa League tie on Thursday, February 27.
Arsenal are confident that there is no issue for West Ham who they played last Saturday and this weekend's trip to Brighton will be unaffected.