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African champions Nigeria earned themselves a place in the draw on 16 September for the final round of African World Cup play-offs with a win over Malawi.
Nigeria finished top of Group F thanks to a 2-0 triumph over 10-man Malawi.
Here is BBC Sport's preview of all that match and all the games in Groups F-J. Groups A-E are previewed here.
Only the 10 overall group winners will advance to the final round of play-offs, with the first legs played between 11-15 October and the return legs 15-19 November.
Saturday: Nigeria 2-0 Malawi, Sunday: Kenya v Namibia (Nairobi),
Nigeria dominated for large parts of a match played on a rain-soaked pitch in Calabar as they emerged 2-0 winners over Malawi.
The Super Eagles took the lead in the last few seconds of the first-half thanks to a deft chip from Emmanuel Emenike, the man who finished top scored at the Africa Cup of Nations this year.
Liverpool's Victor Moses scored the second for Nigeria from the penalty spot in the 51st minute after Malawi's James Sangala was adjudged to have brought down Nnamdi Omuadi.
The Flames were reduced to 10 men a few minutes later when Mzava Limbikani was shown a second yellow card for a reckless tackle on Ahmed Musa.
Emenike should have extended the lead in the 73rd minute but somehow put the ball over the bar from inside the six-yard area.
Kenya host Namibia in the other game in this group where a win for the Harambee Stars would see them avoid finishing bottom of the group.
Sunday: Zimbabwe v Mozambique (Harare), Tuesday: Egypt v Guinea (Alexandria)
Egypt are looking to maintain the only 100% record in the African qualifiers when they play Guinea in a match that does not take place until Tuesday.
With continued security problems in Cairo, the match was due to be played in Alexandria – but it has been thrown into doubt by the decision of the country's Interior Ministry not provide security for the game.
The Egypt Football Association have appealed to the country's interim Presidency to make sure that the game goes ahead.
Egypt cannot be caught at the top of the group, but if they forfeit the match against Guinea they could face sanctions from Fifa.
Meanwhile on Sunday in Harare, Zimbabwe face Mozambique as both nations try to register their first wins of the campaign.
Sunday: Benin v Rwanda (Porto Novo), Tuesday: Algeria v Mali (Blida)
Algeria are another nation who have already secured their place in the play-offs and so can begin their preparations for those ties when they host Mali on Tuesday.
On Sunday, Rwanda travel to play Benin in search of their first Group H victory.
Sunday: Cameroon v Libya (Yaounde), Togo v DR Congo (Lome)
Sunday's encounter in Yaounde is another winner-takes-all match as Cameroon host Libya.
The Indomitable Lions only need to draw to advance thanks to yet another ineligible player – this time Togo's Alexis Romao, who should have been suspended but played when the two teams met in June.
Togo won the game on the day but Fifa overturned that result and awarded Cameroon a 3-0 win that leapfrogged them above Libya to the top of the group.
Instead of needing to win, Cameroon now only need to avoid defeat to advance. Only a win will be good enough for Libya.
Despite this, Indomitable Lions midfielder Eyong Enoh insists Cameroon are going for all three points.
"The game on Sunday against Libya is serious business, and the players are hungry for victory," he said.
"We are not going to play for a draw. Everybody's mind is made up to win the game, and to win we need to score goals."
"With the return of Eric-Maxim Choupo-Moting and Samuel Eto'o and hopefully with aggressiveness and purposeful play, Cameroon should be able to score goals and get a victory."
Germany-based striker Choupo-Moting returns from injury and is determined to give his best.
"Playing at home in Cameroon, a big football nation, our goal is to beat every team at home," he insisted.
"We did not score in the last two games and I will help the team to score goals and play better football."
The overturned result means Togo are another side looking for their first win in the group, as they host DR Congo in what will be the last game for coach Didier Six.
Saturday: Angola v Liberia (Lubango), Senegal v Uganda (Marrakesh)
One match will decide the winner of this group as Senegal 'host' Uganda on Saturday.
Yet the game is being played on neutral territory in the Moroccan city of Marrakesh as there is still a ban on the use of Senegal's home stadium in Dakar.
The ban is in place after crowd trouble affected an Africa Cup of Nations qualifier against Ivory Coast last year.
The Teranga Lions need just draw to advance while Uganda have to win the match in order to progress.
There is no Demba Ba in the Senegal team after he was dropped by French coach Alain Giresse.
Fellow striker Papiss Cisse is also absent, suspended after picking up two yellow cards in earlier qualifiers.
Uganda prepared for the match with a training camp in Turkey and dropped striker Geoffrey Massa from the squad because coach Milutin 'Micho' Sredojevic felt he was 'unfit'.