Brendan Rodgers takes his Celtic side to Russia ahead of Thursday night's clash.
Brendan Rodgers' Celtic face Zenit on Thursday night in Russia.
The Australian prospect turned out for the Celtic development team in a dominant victory over St Mirren on Friday.
The 25-year-old has been out of action for Celtic for a number of weeks, recovering from a shock hernia operation.
Scottish Premiership champions Celtic have signed young Aussie talent Leo Mazis, who will join his idol Tom Rogic at Parkhead.
Tom Rogic was pencilled in to play for Celtic's Under-23 side on Monday evening ahead of Thursday's Europa League clash against Zenit.
Celtic midfielder Tom Rogic has been out injured for two months with a knee problem.
Celtic midfielder Tom Rogic will play for the Under-23 side today, says Brendan Rodgers.
With Celtic looking to strengthen in attacking midfield, Duffy highlights that they already own the man for the job
Celtic ace Tom Rogic has been sidelined since the start of December.