Steven Gerrard won't take a call on James Tavernier 's fitness until the last minute as his skipper battles to be available for the Europa League last-16 clash against Bayer Leverkusen.
The Ibrox captain injured his foot against Hamilton last week and sat out Sunday's win at Ross County after being forced into a moon boot.
Scott Arfield returns from a hamstring injury but Ryan Jack is out with a recurrence of his calf issue.
Filip Helander stepped up his recovery from a foot issue with a 45-minute run out against Brentford's reserves on Tuesday, while Jon Flanagan and Jordan Jones have been left out of Gers' Europa League squad and can't be used.
The Ibrox side will hope a raucous Ibrox crowd can be the twelfth man against a dangerous Leverkusen side that sit just six points off the top of the Bundesliga.
Rangers provisional squad:
McGregor,
Tavernier,
Goldson,
Edmundson,
Barisic,
Davis,
Arfield,
Kamara,
Aribo,
Hagi,
Morelos,
Kamberi,
Ojo,
Kent,
Halliday,
Katic,
Barker,
Polster,
Foderingham.
