Midfielder Ryan Jack is an injury concern for Rangers ahead of their clash with Benfica.
The Scotland international sustained a knock during the 4-0 thumping of his former club Aberdeen on Sunday.
He may have to sit out Thursday's Europa League showdown against the Super Eagles.
Steven Gerrard 's side can take a massive step towards the last 32 with victory over Jorge Jesus' depleted squad.
Bongani Zungu will be missing for up to another 10 days after injuring his knee on South Africa duty. Jermain Defoe, Jordan Jones and George Edmundson are not part of Steven Gerrard's European squad, while Nikola Katic is still out with his long-term knee injury.
Potential line-up
Provisional squad
Allan McGregor
Jon McLaughlin
James Tavernier
Calvin Bassey
Connor Goldson
Filip Helander
Leon Balogun
Borna Barisic
Ianis Hagi
Steven Davis
Joe Aribo
Glen Kamara
Greg Stewart
Scott Arfield
Cedric Itten
Alfredo Morelos
Ryan Kent
Kemar Roofe
Brandon Barker
