The club confirmed positive covid test results had been recorded earlier this week although no identities were revealed.
However there were notable absentees from the squad which flew out to Armenia ahead of the second leg.
Alfredo Morelos and Connor Goldson were on the plane but Steven Gerrard is known to be amongst those self-isolating and missing the match in Yerevan.
Further details are not yet known however Gary McAllister and Michael Beale will still put together a team which will, they hope, take the Scottish champions into the Europa League group stage for the fourth consecutive season.
Here is who they might pick and how Rangers could line up for the vital qualifier.

. GLASGOW, SCOTLAND - AUGUST 25: Rangers assistant manager Gary McAllister is pictured as they depart Glasgow Airport as Rangers head to Armenia on August 25 , 2021, in Glasgow, Scotland. (Photo by Mark Scates / SNS Group)
Rangers assistant manager Gary McAllister is pictured as they depart Glasgow Airport as Rangers head to Armenia on August 25 , 2021, in Glasgow, Scotland. (Photo by Mark Scates / SNS Group) Photo: Mark Scates - SNS Group

. GK - Robby McCrorie
On loan at Livingston last year, this could be the goalkeeper's full Rangers debut. Photo: Mark Scates - SNS Group

. DL - Borna Barisic
The Croatian has played three times this season - and lost all three - away against Dundee United and Malmo, plus home in the Champions League. Photo: Rico Brouwer - SNS Group


10. FC - Alfredo Morelos
The Colombian was pictured on the flight and posted on his social media account. Photo: Ian MacNicol

11. RF - Joe Aribo
Nigerian international scored a wonderful goal in Dingwall and heads to Armenia in form. Photo: Craig Williamson - SNS Group

12. Alashkert FC
Rangers can progress by avoiding defeat in Yerevan. Photo: Ross MacDonald - SNS Group