Celtic finished off their Europa League campaign without a victory in Group A after a 1-1 draw against Fenerbahce.
The Hoops fell behind to a mistake from goalkeeper Craig Gordon, as Lazar Markovic was on hand to capitalise.
Diego’s red card for kicking out at Stefan Johansen shifted the momentum in favour of Celtic, who equalised through substitute Kris Commons soon after.
The result was meaningless in terms of their own aspirations of progressing through to the last-32 which were ended on matchday five by Ajax but Deila had spoke of playing for pride. The point ensured Fenerbahce had qualified.
Scott Allan was given his first start while Nadir Ciftci replaced the injured Leigh Griffiths.
The hosts were without Robin van Persie, Nani and Raul but still looked threatening as Ronny Deila’s men started on the back foot.
Mehmet Topal crashed an effort off the post which Craig Gordon got a hand to, while Diego forced the goalkeeper into a save from long range.
However, if Gordon was earning the plaudits last season for his performances then the blame fell squarely on him for Fenerbahce’s opener.
The goalkeeper misjudged the bounce of the ball which squirmed embarrassingly through his legs before a grateful Markovic slotted in from a tight angle. The Serbian looked almost sheepish in his celebration.
Lustig’s deflected effort which narrowly wide just before half-time was the only chance that the Hoops were able to muster in a first half devoid of chances.
Ciftci lacked match sharpness and it was telling in the way that he allowed Ba to get in a last-ditch challenge before the interval and was he unable to improve on his pedestrian first-half showing.
A glimmer of hope was given to Celtic that they could get back into it when Diego was sent off for foolishly kicking out at Johansen.
And Deila’s men didn’t need a second invitation to get themselves back in the game, levelling the scores through substitute Commons.
The playmaker made an immediate impact coming off the bench to produce a lovely diving header from Lustig’s delivery to equalise.