Celtic progressed to the Champions League play-offs at the expense of IK Elfsborg after a goalless draw in Sweden.
But Celtic weathered the storm to seal their place in the play-offs with a 1-0 aggregate victory.
Despite a somewhat passive first-half display, Celtic managed to produce the best two chances of the first half. The first fell to Samaras, who lost his marker but could only head over.
But the best chance fell to Ledley, who seized on a loose ball after Kris Commons's free-kick deflected into his path but saw his shot saved brilliantly by Elfsborg keeper Kevin Stuhr Ellegaard.
Elfsborg played the more positive football in the opening period and were rewarded with two clear-cut opportunities of their own - and both fell to the dangerous Bangura.
The first was an outrageous but brilliantly executed free-kick that whistled just wide of the post and the second was a header that the striker could not quite keep down from eight yards.
The Bangura v Efe Ambrose battle was an intriguing one. Centre-half Ambrose seemed to get the better of it as the match wore on, with Bangura's quiet second half representative of Elfsborg's lack of cutting edge.
The Swedish side saw more of the ball in the second period but rarely troubled Fraser Forster in the Celtic goal. The Scots were only once in real trouble, when they had to hack the ball off their own line after a long throw by Johan Larsson caused a moment of panic.
Celtic easily held on to progress to the play-offs again. They will discover who they face there on Friday.