With the huge crowd cheering them on at the Stadium in Uyo on Saturday, the Eagles laboured till the 78th minute before they could register the first and only goal of the game.
Tanzania keeper Manula gave a man-of-the-match display, stopping the Super Eagles on a number of occasions. But the shot-stopper had no answer to Iheanacho’s thunderbolt in the 78th minute.
Saturday’s win was the only one recorded by Nigeria in the AFCON 2017 Qualifiers as they finish with five points in four games.
Egypt, on their part, topped the group with unassailable 10 points from same number of games.