Super Eagles of Nigeria failed to establish supremacy over the Leon Stars of Sierra Leone on Tuesday after the two sides played out a goalless draw at the National Stadium in Freetown on Tuesday.
The Leone Stars had denied the Eagles the opportunity of sealing a comfortable victory in the first leg having fought back from four goals down to stage an emphatic draw against the three time African Champions.
Despite the draw, Nigeria still tops Group L with eight points, with Benin (seven), Sierra Leone (three) and Lesotho (two).
Leicester City forward, Kelechi Iheanacho had sparked things up for the Eagles in the early minutes of the encounter through his set piece but goalkeeper Mohamed Kamara dealt with it.
The Super Eagles had another chance on 16 minutes when Samuel Chukwueze curled an effort just wide of the mark, before the Leone Stars had their first chance through Alhaji Kamara, who was denied by a fine save from Maduka Okoye.
Super Eagles suffered an injury blow a few minutes before the interval when midfielder Oghenekaro Etebo limped off and was replaced by Shehu Abdullahi.