Neil Lennon is concerned about his side’s growing injury list ahead of next week’s Champions League clash with Cliftonville.
A depleted Celtic side lost 6-2 to Greuther Furth last night with midfielders Scott Brown and Joe Ledley still to feature in the three games played so far.
Adam Matthews is another still waiting to see action with the midfield options starting to run thin with Victor Wanyama about to seal a £12.5m move to Southampton.
Fraser Forster and Charlie Mulgrew picked up knocks in last night’s defeat with neither player likely to be risked in Friday’s final tour match against Union Berlin.
“My main concern is we’re picking up a lot of injuries,” Lennon admitted.
“We’ve not seen Brown, Ledley or Matthews yet, and James Forrest and Gary Hooper have hardly kicked a ball on this trip.
“Charlie has picked up a strain too, and we will have to see how he is. That’s where we are, we are stretched and it’s all taking its toll.
“It’s a concern because I don’t know what team I’m going to have available for next week and we’ve still got another game to come in Berlin on Friday.”
Wanyama was due to play against Greuther Furth but was left out at the last minute with reports that his move to Southampton is back on.
The 22-year-old is expected to fly to Southampton to discuss personal terms as Celtic prepare to bank a Scottish record transfer fee.