The 2021 U-20 Africa Cup of Nations was the 16th edition (23rd edition if editions of the tournament without hosts are included), the biennial international youth football tournament organized by the Confederation of African Football (CAF) for players aged 20 and below. In September 2018, it was decided that the tournament would be hosted by Mauritania.[2][3][4][5] This would be the first edition of the Africa U-20 Cup of Nations to be expanded to 12 teams instead of eight.[6] The top four teams of the tournament would have normally qualified for the 2021 FIFA U-20 World Cup in Indonesia as the CAF representatives. However, FIFA decided to cancel the tournament on 24 December 2020 due to the COVID-19 pandemic.[7]
The defending champions Mali failed to qualify. Ghana won their fourth title by defeating debutant Uganda in the final.
The group stage draw was held on 25 January 2021, 11:00 AM WAT (UTC+1), at the Hilton Hotel in Cameroon.[8] The twelve teams were drawn into three groups of four teams. The hosts, Mauritania, were seeded in Group A and allocated to position A1, with Ghana and Burkina Faso, the only teams among the 12 who participated in the last edition of the CAN Total U20, drawn into B1 & C1 positions. All the other teams were in the same level and were distributed over the three groups.
The top two teams of each group advance to the quarter finals along with the two best 3rd placed teams.
Tiebreakers
Teams are ranked according to points (3 points for a win, 1 point for a draw, 0 points for a loss), and if tied on points, the following tiebreaking criteria are applied, in the order given, to determine the rankings (Regulations Article 71):[citation needed]
Goals scored in head-to-head matches among tied teams;
If more than two teams are tied, and after applying all head-to-head criteria above, a subset of teams are still tied, all head-to-head criteria above are reapplied exclusively to this subset of teams;
Per statistical convention in football, matches decided in extra time are counted as wins and losses, while matches decided by a penalty shoot-out are counted as draws.