AFCON defending champion Algeria began the defence of their Africa Cup of Nations title with a goalless draw against a determined and spirited Sierra Leone side in Group E.
The Leone Stars had the better first-half openings, when Alhaji Kamara sent two chances narrowly wide but also ensured that the North Africans did not punish them for that.
Kamara then denied Ramy Bensebaini and Baghdad Bounedjah opportunities to score in stoppage time.
Former England defender Steven Caulker, who recently switched international allegiance to Sierra Leone contributed his quota in the game. He made two crucial blocks to help his side keep a clean sheet on their first Nations Cup appearance since 1996.
Algeria enjoyed 67 per cent ball possession, but had nothing to show for it as both sides shared the point.