Sudanese side Al Merreikh began the group phase with a 2:0 victory.
Etoile win as Ahly continue defence.
The three sides from Algeria, including reigning champions Entente Setif in GROUP B.
Tanzania has appointed former international Charles Boniface Mkwasa as interim coach.
Leeds United sign Ivory Coast defender Sol Bamba .
Burkina Faso striker Bertrand Traore is set to feature in Chelsea's first-team squad after being granted a work permit.
Aston Villa midfielder Yacouba Sylla has joined French side Rennes.
Cameroon out of the tournament.
Serbia beat Brazil after extra time.
Ikechukwu Uche is ready for a new challenge.
Argentina vs Mexico 2:0
FACTS
Goals Argentina
Messi (64'minutes)
Fernández (87'minutes)
Assists
Di María (64'minutes)
Messi (87'minutes)
Argentina
Mexico