Fourteen players and staff members of Serie A side Genoa have now tested positive for Covid-19, the club confirmed on Monday.
Genoa reported at the weekend that Denmark international midfielder Lasse Schone and goalkeeper Mattia Perin had contracted the virus.
In a statement, the club said they had "activated all procedures" and "informed the authorities".
Genoa lost 6-0 at Napoli in their Serie A match on Sunday.
They are due to play their next game at home to Torino on Saturday, 3 October, and the club say they will "provide updates as the situation evolves".