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Ronny Deila claims Celtic showed in their 1-1 draw with Fenerbahce in Istanbul that they can make an impact in Europe.
The Parkhead club had travelled to Turkey guaranteed to finish bottom of Group A after taking just two points from five fixtures, but they held their own in the first half and only went behind in the 39th minute when goalkeeper Craig Gordon's howler allowed winger Lazar Markovic to score.
Fenerbahce midfielder Diego, booked early in the first half after an altercation with Hoops midfielder Stefan Johansen, was shown a straight red in the 67th minute for a kick at the Norwegian, before substitute Kris Commons levelled with a header as the visitors finished strongly.
The home side join the section's surprise package Molde in the knockout stages with Ajax third, but the Hoops boss was encouraged.
"They showed today that we can get results," Deila said. "Fenerbahce are a very good football team.
"We have drawn 3-3 on aggregate against them and we were very close with Ajax as well, a team that has been in the Champions League. They are big clubs.
"Against Molde, we did well but they showed they have been the best team in the group, but of course I have confidence in this group that we can do it and we are going to show it.
"It is tough to come here. We met a very good team and I am very happy with getting a result away from home.
"I have confidence. There are small things that we want to do. My philosophy is not so different to what Fenerbahce do or Ajax, it is to do things good enough.
"This year we conceded too many easy goals but we have scored goals, so it is small things that have to be better at to get the results we want.
"Overall it was a good performance and a good result."
Deila claims the fear of giving away a penalty with all its possible ramifications distracted Gordon when he came out of his goal, only for the ball to run through his legs to Markovic, on loan from Liverpool, to slide the ball in from a tight angle.
"It was a difficult situation," the Norwegian said. "I think Craig put his legs out a little bit, maybe because he was afraid to give away a penalty.
"It went through his legs but that can happen in a game.
"But he had a couple of good saves as well so you have to take that into consideration.
"Kris did well and James Forrest as well came on a did some positive things, Tom Rogic as well. We had three good substitutes."
Commons, back after missing four games with a hamstring injury, believes the morale-boosting result will help Celtic when they resume domestic competition, starting with the trip to St Johnstone in the Ladbrokes Premiership on Sunday.
He told Press Association Sport: "It was good to get back. I have been out for three or four weeks.
"It was good to get some minutes under my belt, it is always nice to get on the scoresheet but I think it was important that we didn't come here and get beat tonight.
"It kind of puts us in good stead for the rest of the season."