Ezechiel N’Douassel was the hero for Chad in N’Djamena, scoring the sole goal of the game as Chad defeated Liberia 1-0 in second leg match played at the Stade Omnisports Idriss Mahamat Ouya.
The tie ended in a 1-1 aggregate and Chad went on to win 5-4 on penalties, a result that earns them a place in Group A where they will meet Mali, Guinea and Namibia.
Liberia were reduced to 10-men five minutes into the second half when skipper Sam Johnson was shown a second yellow card.
Eugene Swen and forward Kpah Sherman, who scored in the first leg that was played on last Wednesday in Monrovia, missed their respective spot-kicks.
The Lone Stars had travelled for the match without some of their key players most notably Mamelodi Sundowns forward Antony Laffor.
South Sudan recorded a 1-0 win over Seychelles in a match played at Stade Linité in Victoria on Sunday evening.
Joseph Kuch scored the goal in the 71st minute, making sure that the South Sudanese advance to the group stages on a healthy 3-1 aggregate victory.
The Bright Stars will now go into Group B where they will contest for a place in Cameroon with Burkina Faso, neighbours Uganda and Malawi.
At the Independence Stadium in Bakau, Gambia were held to a 1-1 stalemate by a stubborn Djbouti side, leaving the countries deadlocked at 2-2 on aggregate.
Gambia goalkeeper Modou Jobe was the star of the shootout, saving two Djibouti spot-kicks to give his side a 3-2 victory on penalties.
Elsewhere, Sao Tome and Principle booked their spot in the group stages after beating Mauritius 2-1 in a match played at the Estádio Nacional 12 de Julho in São Tomé.
The Sunday result means the Islanders progress on a 5-2 aggregate victory and they are set to take on Ghana, South Africa and Sudan in Group C.
