Brendan Rodgers side head into their game with FC Astana with major concerns over their defence.
Celtic's Craig Gordon
Brendan Rodgers side travel to Kazakhstan on Wednesday evening looking to secure a positive result to take back to Celtic Park.
They have already suffered embarrassment on the road in the competition this summer after losing to Lincoln Red Imps in the last round.
Celtic manager Brendan Rodgers
They face a tougher game this time around and head into it with major concerns surrounding the defence, which is desperately short of numbers as injuries have ruled out their key men.
Gordon though, has moved to allay any fears and offers his backing to those that will play, insisting they will be up to the task.
“We’ve defended fairly well regardless of who has come in,” he told the club’s official website.
“I don’t see it being a problem. We still have the same defenders we had at the club at the end of last season so I don’t see any problem with whoever is picked to start. They’ll be up to the task.”
Celtic's Craig Gordon (L) and Erik Sviatchenko (R) in action with Greenock Morton's Denny Johnstone
The goalkeeper has however conceded that the tie is likely to be a very difficult one for the Scottish champions.
Stanimir Stoilov’s boast an impressive record in the competition, managing a 0-0 draw against finalists Atletico Madrid when they travelled to the Astana Arena last season.
Gordon though, insists that they will approach the clash with the same plan that they always have, to score goals and win.
Celtic manager Brendan Rodgers before the match