United fans have from now to 8am on Wednesday to apply for tickets for the Champions League semi final second league game at The Emirates Stadium on Tuesday, May 5.
Box holders, executive members, season ticket holders and One United Members can apply for tickets online or by calling 0161 868 8000.
Applicants can find out if they have got tickets on Friday.
Those who get tickets most write a travel report and send it to United before 8am on April 27 due to regulations set out by UEFA.
United have not said how many away tickets there will be, but we think it will be around the 3,100 mark.
The club have also not said how much the tickets will cost, but we suspect tickets will be priced at £49, with a small number of VIP tickets available at about £90.