The 19-year-old winger joined Celtic on a two-year loan deal from Manchester City last month and has since been building up his fitness in training following 2018 World Cup duty where he dazzled in three appearances off the bench.

Arzani is still not ready in fitness terms for first-team action but has played for Celtic's reserves side.

However, he was expected to be included in Celtic's squad for the Europa League following their qualification for the group stage last week, with an aggregate win over Suduva.

Celtic submitted a 43-man squad to UEFA on Tuesday, with Arzani failing to make the cut. Fellow Australian Tom Rogic was in the squad.

The Bhoys will take on RB Leipzig, Salzburg and Rosenborg in the Europa League group stage.

Celtic squad list (*indicates player list B)

GOALKEEPERS

Craig Gordon, Scott Bain, Conor Hazard*, Ryan Mullen*

DEFENDERS

Kieran Tierney*, Emilio Izaguirre, Kristoffer Ajer, Jack Hendry, Jozo Simunovic, Cristian Gamboa, Dedryck Boyata, Mikael Lustig, Filip Benkovic, Anthony Ralston*, Daniel Church*, Wallace Duffy*, Kerr McInroy*, Stephen Welsh*, Lewis Bell*

MIDFIELDERS

Scott Brown, Scott Sinclair, Lewis Morgan, Tom Rogic, Olivier Ntcham, Youssuf Mulumbu, Callum McGregor, James Forrest, Eboue Kouassi, Ewan Henderson*, Scott Robertson*, Paul Kennedy*, Ross McLaughlin*, David Mckay*, Kristie Marku*, Mark Hill*, Kieran Mcgrath*, Regan Hendry*

FORWARDS

Leigh Griffiths, Jonny Hayes, Ryan Christie, Odsonne Edouard, Michael Johnston*, Grant Savoury*