Ronny Deila has said that he was disappointed with Celtic's performance during their 1-1 Scottish Premiership draw against Inverness Caledonian Thistle.
Leigh Griffiths scored after three minutes but Edward Ofere equalised a minute later for the hosts.
"It was a disappointing performance. It is disappointing to lose a goal right away," Deila told Sky Sports News.
"There was a lack of energy and we were always a second too late in the challenges and didn't get the tempo or create the chances we wanted to, even though we had a lot of possession.
"One point is what we got, we have to make it right on Wednesday [against Kilmarnock]."
The result sees Celtic move to eight points clear at the top of the Scottish Premiership table.
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