https://www.telegraph.co.uk/football/2020/03/10/wolves-talks-uefa-postponing-europa-league-tie-olympiakos-chairman/
Posting links to the Torygraph are not useful as they are behind a paywall!
I was able to read this much:
Europa League tie after Olympiakos chairman contracts coronavirus
Evangelos Marinakis, who is also the owner of Nottingham Forest and was at their match last week, confirmed the news on Instagram
By
John Percy
10 March 2020 • 1:06pm
Premium
Wolves in talks with Uefa over postponing Europa League tie with Olympiakos after chairman contracts coronavirus
Wolves are in talks with Uefa over a potential postponement of their Europa League tie with Olympiakos, after the Greek club's chairman Evangelos Marinakis revealed he has contracted coronavirus.
Officials from Wolves are growing increasingly concerned over the risk factor involved in travelling for Thursday's game, with the tie already to be played behind closed doors.
Marinakis, who is also the owner of Nottingham Forest, posted on Instagram that he has coronavirus and it is understood Olympiakos's players and coaching staff are also to undergo tests to discover if they have also picked it up.
Wolves are in dialogue with Uefa and asking if the game can be postponed, with a decision likely to be made in the next 24 hours. Wolves staff and players are set to fly out to Athens on Wednesday afternoon....