Youssef Msakni's low, swerving shot just after halftime was the only goal, leaving Nigerian players slumped on the field in disappointment at the end.
Nigeriaâ€™s 100% record in the group stage meant nothing as it was knocked out 1-0 by Tunisia in the last 16 of the African Cup of Nations.
Youssef Msakniâ€™s low, swerving shot just after halftime was the only goal, leaving Nigerian players slumped on the field in disappointment at the end.
Nigeriaâ€™s task was made even harder when Evertonâ€™s Alex Iwobi was shown a straight red card for raking his studs down the ankle of Msakni in the 66th minute. Iwobi was sent off seven minutes after he arrived as a substitute.
Nigeria had emerged as maybe the top contender for the title after it was the only team to win all its group games. Tunisia lost twice in the group stage and only went through as one of the best third-place teams but closed Nigeria down in a cagey game in Garoua on the first day of the knockout stage.
â€œCanâ€™t take anything away from them, but we should have been better.â€ Tunisia got the job done without coach Mondher Kebaier, who was isolating in his hotel room instead of standing on the sidelines after a positive test for the coronavirus.
Tunisia will play Burkina Faso in the quarterfinals.
Burkina Faso beat Gabon in a penalty shootout in Limbe earlier Sunday and hours after mutinous soldiers seized control of a military base back home in Burkina Faso, raising fears of a coup attempt.
Substitute Ismahila OuÃ©draogo buried the decisive spot kick and Burkina Faso won the shootout 7-6 to finally prevail over a brave Gabonese effort.
Burkina Faso led 1-0, and Gabon had a man sent off in the 67th. But 10-man Gabon equalized in injury time through an own-goal by Burkina Faso midfielder Adama Guira to send the game to extra time.
It stayed 1-1 through extra time.
Burkina Faso was 1-0 up in normal time through a first-half goal by captain Bertrand TraorÃ© when Gabon had defender Sidney Obissa sent off with just over 20 minutes to go for a second yellow card.
Obissa had blatantly pulled a Burkina Faso attacker back by the shirt off the ball as the Burkinabes were surging forward.
It was a miserable day for Obissa, who picked up his first yellow card when he gave away an early penalty with a push on Burkina Fasoâ€™s Issa KaborÃ© on the edge of the area.
Host Cameroon plays tournament debutant Comoros in the last 16 on Monday, when Comoros looks like it will be forced to field an outfield player as a goalkeeper because of a virus outbreak in its squad.