The Reds head into the second-leg tie on the back of a five-goal away win from March’s reverse meeting in Austria.
With the remainder of the tournament set to be wrapped up in just 16 short days, it’s going to be non-stop European action.
But which other sides are still involved in the competition? And, excluding LASK, how much do you know about those 14 clubs?
Well, we’ve got you sorted with this special report, which first appeared in our Official Magazine Inside United - order your August edition here!
ISTANBUL BASAKSEHIR
Nationality: Turkish
Any history with United: None, the club was only formed six years ago after the local water municipality withdrew funding of Istanbul BB, itself only in existence since 1990.