Man uniteds europa league match at lask put behind closed doors

I think there may be some confusion here!

Manchester United did not play a Europa League match at LASK. However, Manchester United did play a Europa League match against LASK in March 2020, but it was not played behind closed doors.

The match was played at the Raiffeisen Arena in Linz, Austria, on March 12, 2020, and Manchester United won 5-0. The match was played in front of a crowd of around 12,000 fans.

It's possible that you may be thinking of a different match or a different competition. If you could provide more information or clarify what you're referring to, I'd be happy to try and help further!