Teams in Cameroon are putting in their final preparations ahead of the last 16 matches which kick off on Sunday.
Burkina Faso and Gabon will get the ball rolling as they go head to head in Limbé, while flawless Nigeria will take on Covid-hit Tunisia.
Augustine Eguavoen's team were the only side with a 100 per cent winning record in the groups, and now they tackle a Tunisia outfit who only edged through as one of the best third-placed teams, having lost twice already.
These sides are meeting for the sixth time at the Africa Cup of Nations and Tunisia's only successful AFCON meeting with Nigeria came in 2004, when they progressed via penalties in the semi-finals, going on to win the competition.
Nigeria have won 12 of their last 14 AFCON games (L2), and they start this game as hot favourites.
Nigeria have had more different scorers (6) than any other team so far at this year's tournament, with Kelechi Iheanacho, Simon, Simon Chukwueze, Taiwo Awoniyi, Troost-Ekong and Umar Sadiq each scoring once.
The AFCON Round of 16 contest between Nigeria and Tunisia will kick off at the Roumdé Adjia Stadium in Garoua on Sunday 23 January 2022 at 8pm local time
Head to head (h2h) history and results
Nigeria wins: 6
Draws: 8
Tunisia wins: 6
Nigeria and Tunisia are meeting for the sixth time at the Africa Cup of Nations, with four of the previous five matches being played in knock-out games. Nigeria are unbeaten in all five (W3 D2, excluding shoot-outs).
● Tunisia’s only successful Africa Cup of Nations meeting with Nigeria came in 2004, when they progressed via penalties in the semi-finals after the match finished level, going onto win the competition that year.
● Nigeria have won 12 of their last 14 Africa Cup of Nations games (L2), winning each of their last four in a row.
● Tunisia made it through to the round of 16 despite losing two of their three 2021 AFCON matches (W1). They’ve now lost four of their last five in the competition (W1), as many defeats as in their previous 16 games at the Africa Cup of Nations (W5 D7).
● Nigeria have had more different goal scorers (6) than any other team so far at the 2021 Africa Cup of Nations, with Kelechi Iheanacho, Moses Simon, Simon Chukwueze, Taiwo Awoniyi, William Troost-Ekong and Umar Sadiq each scoring once.