All Olympiacos players plus its staff members were tested negative for coronavirus, as reported by the Greek club.
A day after it was announced that Olympiacos owner, Evangelos Marinakis, had been infected with coronavirus, all players and staff members of the club went through coronavirus tests that revealed they were not infected as yet.
Marinakis, who is also the owner of Nottingham Forest, confirmed on Instagram that he had been tested positive for coronavirus after showing symptoms of being infected upon returning to Greece on Monday.
Following that, all Olympiacos' players, board and staff members were tested for coronavirus which returned negative and the club confirmed that nobody else except the owner of the club was infected with the virus.
"Olympiacos FC informs that after the required medical exams to which all the members of the football staff, as well as board members and staff, were submitted, all the tests came out negative for the COVID-19 virus," the club said in a statement on Wednesday morning.
Although Wolves are not happy with UEFA's decision for their match against Olympiacos in the Europa League last-16 tie on Thursday to be played behind closed doors, the match will be held with no fans present at Georgios Karaiskakis Stadium.
Wolves have already asked UEFA to postpone the match instead of it being played behind closed doors, stating that "the trip poses unnecessary risk to our players, staff, supporters and the families of all who travel", but UEFA rejected their request.
Olympiacos has advanced to the Europa League last-16 tie by beating Arsenal 2-1 in their away match in London on February 27.
Marinakis was at that fixture and had "come into contact" with personnel from the Gunners, which has led to Arsenal's Premier League fixture against Manchester City, scheduled for Wednesday, being postponed as a precaution.
Arsenal players and four of the club's staff members have self-quarantined themselves at home until two weeks will have gone by.