Nigeria win a dangerous free kick on the edge of the box and the Super Eagles have got the fans bouncing.
Ghana defender Daniel Amartey gets booked in the process.
However, Ademola Lookman’s free kick blocked by the wall and Ghana regroup.
Post update
Senegal 1-0 Egypt (1-1 agg)
Meanwhile in Diamniadio, it's still a niggly affair.
Sadio Mane gets in behind the Egypt defence but is penalised for handball.
The visitors are holding on at the moment and have barely threatened Edouard Mendy in the Senegal goal as we approach the half hour mark.
GOAL: Nigeria 1-1 Ghana (1-1 agg)
William Troost-Ekong pen (22 mins)
Nigeria are level through the captain William Troost Ekong.
The Watford centre-back sends Ghana keeper Jojo Wollacott the wrong way to send the home fans into a frenzy in Abuja.
That gets the Super Eagles back in the game - but Ghana still have the advantage on away goals.
Video Assistant Referee
Nigeria 0-1 Ghana (0-1 agg)
The referee is now checking VAR for a possible Nigeria penalty - and decides it's a spot-kick!
A massive chance for the Super Eagles to get back into the tie...
Post update
Nigeria 0-1 Ghana (0-1 agg)
Oluwashina Okeleji
BBC Sport Africa in Abuja
Nigeria looking to bounce back after conceding early on.
Victor Osimhen’s effort beats Wollacott but agonisingly wide.
The Super Eagles have with a great chance inside the box but the Ghana defence reacts quickly to thwart Ademola Lookman and Osimhen.
Remember that away goals do count in this tie, meaning Nigeria now need two goals against the Black Stars and hope they don’t concede another.
Post update
Senegal 1-0 Egypt (1-1 agg)
Egypt keeper Mohamed El Shenawy goes to ground as he claims a deep cross.
He's then hit by a water bottle thrown from the crowd.
He complains to the referee - and there are certainly a few water bottles beside the goal behind him.
Then the laser pen is trained on El Shenawy. Senegal forward Sadio Mane pleads with the crowd not to get involved.
Senegal's fans are certainly up for this. It's been a tightly-contested first 15 minutes on the pitch.
GOAL: Nigeria 0-1 Ghana (0-1 agg)
Thomas Partey (10 mins)
Ghana midfielder Thomas Partey hits it hard from outside the box and it goes through Francis Uzoho's hands!
Nightmare for the Nigeria keeper!
Ghana will be heading to Qatar as it stands. The Super Eagles need two goals now!
Post update
Senegal 1-0 Egypt (1-1 agg)
Tensions are running high already on the sidelines.
Algerian referee Mustapha Ghorbal has to come across to the dugouts to have words with Senegal boss Aliou Cisse and Egypt's Carlos Queiroz.
Queiroz was no stranger to quarrels with the officials during the Nations Cup. Someone in the crowd has a laser pen trained on the former Real Madrid coach, too.
It could be a very long evening for Ghorbal...
GOAL: Senegal 1-0 Egypt (1-1 agg)
Boulaye Dia (4 mins)
Talk about a fast start - and Senegal have the goal they craved!
It was a scrappy one, from a free-kick just outside the box on the left.
The ball goes to the back post and there's a weak clearing header at the back post which falls to Boulaye Dia.
The striker controls and stabs home from close range, and the stadium erupts.
KICK-OFF
Nigeria 0-0 Ghana (0-0 agg)
Nigeria gets the game under way in a packed-out MKO National Stadium in Abuja.
KICK-OFF
Senegal 0-0 Egypt (0-1 agg)
Under way in West Africa.
Eguavoen rings the changes for Nigeria
Nigeria v Ghana (0-0 agg) (17:00 GMT)
Oluwashina Okeleji
BBC Sport Africa in Abuja
Nigeria coach Augustine Eguavoen rings changes to his starting XI. There are major adjustments at the back, midfield and significant changes in attack.
Super Eagles fans and local media demanded for tactical changes and a lot of them will applaud the decision to make five changes to the line-up.
Leicester City winger Ademola Lookman makes his first start for the Super Eagles.
Ghana head coach Otto Addo goes with an unchanged XI.
This West African heavyweight match up was the only play-off
game to end goalless on Friday, and more than bragging rights are up for grabs in the 'Jollof derby'.
The Super Eagles thought they earned a penalty before the
referee went to the VAR monitor and overturned his original decision.
With away goals rule in place, any score draw will send
Ghana through to Qatar. Should there be another goalless draw in Abuja, the game will head to
extra time and penalties if required.
Nigeria are bidding for a fourth successive World Cup appearance, while Ghana missed out on Russia 2018.
Senegal chase two-goal victory
Senegal v Egypt (0-1 agg) (17:00 GMT)
Riham Eldeeb
BBC Arabic
African champions Senegal must win against Egypt at the Abdoulaye Wade Stadium in Diamniadio to have a chance to qualify for the 2022 World Cup.
The Lions of Teranga head into the game seeking to overturn their deficit after falling to a slender 1-0 defeat when the sides went head-to-head in Cairo last Friday.
Liverpool star Mohamed Salah was at the heart of the action when his shot deflected in off Saliou Ciss in the opening four minutes, which was enough to separate the sides.
Only a 1-0 win for Sadio Mane and his Senegal team-mates would force extra-time and penalties, having won a shoot-out in the Nations Cup final against the Pharaohs at the Olembe Stadium in Yaounde last month.
Victory by a two-goal margin will see the West Africans safely though.
However, Senegal will feel confident of overturning their one-goal deficit as they return home in their new stadium
Team news
Senegal v Egypt (0-1 agg) (17:00 GMT)
Senegal boss Aliou Cisse makes four changes in a bid to turn this tie around.
Pa Abdou Cisse, Youssouf Sabaly, Ismaila Sarr and Boulaye Dia all come into the starting line-up.
Egypt make two changes at the back, with Yasser Ibrahim and Rami Rabia coming into defence while Omar Marmoush comes in up front.
The injured Mohamed Abdelmonem, the suspended Mahmoud Hamdy and Mostafa Mohamed drop out.
Senegal XI: E Mendy, B Sarr, Cisse, Koulibaly (capt), Ciss, Sabaly, N Mendy, Gana Gueye, I Sarr, Mane, Dia.
Egypt XI: El Shenawy, Gaber, Rabia, Ibrahim, Fetouh, Elneny, El Soleya, Fathi, Marmoush, Trezeguet, Salah (capt).
Post update
Senegal v Egypt (0-1 agg) (17:00 GMT)
Senegal fans are certainly flocking to the stadium to support their team, with BBC Sport Africa's Babacar Diarra reporting long queues outside the ground over two hours before kick-off.
Senegal are looking to turn around a first-leg deficit in a re-match of the 2021 Africa Cup of Nations final.
The West Africans lifted the continental silverware for the first time after beating Egypt on penalties in Cameroon last month, but could miss out on the World Cup after Saliou Ciss' own goal in the first leg.
This match is being played at the brand-spanking-new Abdoulaye Wade Stadium.
Can the Teranga Lions fans immediately make it an intimidating atmosphere for Egypt?
Fixtures
Here's what's in store:
Nigeria v Ghana (0-0 agg) (17:00 GMT)
Senegal v Egypt (0-1 agg) (17:00 GMT)
Algeria v Cameroon (1-0 agg) (19:30 GMT)
Morocco v DR Congo (1-1 agg) (19:30 GMT)
Tunisia v Mali (1-0 agg) (19:30 GMT)
Ten teams - and just five spots in Qatar
#bbcfootball
African World Cup qualifying reaches its denouement this evening with the second legs of the five play-off ties being played around the continent.
With just five spots provided at Qatar 2022, some traditional heavyweights and big-name players will miss out on the tournament.
Liverpool forwards Sadio Mane and Mohamed Salah are going head-to-head as Senegal host Egypt in Dakar.
All five ties are delicately poised and, with the away goals rule in force, there will no doubt be some nervous moments ahead for coaches and supporters alike.
We'll keep you up to date with all the action from now until the bitter end, bringing you all the goals as they go in.
Live Reporting
Rob Stevens and Luis Costa
All times stated are UK
Post update
Nigeria 1-1 Ghana (1-1 agg)
Oluwashina Okeleji
BBC Sport Africa in Abuja
Nigeria win a dangerous free kick on the edge of the box and the Super Eagles have got the fans bouncing.
Ghana defender Daniel Amartey gets booked in the process.
However, Ademola Lookman’s free kick blocked by the wall and Ghana regroup.
Post update
Senegal 1-0 Egypt (1-1 agg)
Meanwhile in Diamniadio, it's still a niggly affair.
Sadio Mane gets in behind the Egypt defence but is penalised for handball.
The visitors are holding on at the moment and have barely threatened Edouard Mendy in the Senegal goal as we approach the half hour mark.
GOAL: Nigeria 1-1 Ghana (1-1 agg)
William Troost-Ekong pen (22 mins)
Nigeria are level through the captain William Troost Ekong.
The Watford centre-back sends Ghana keeper Jojo Wollacott the wrong way to send the home fans into a frenzy in Abuja.
That gets the Super Eagles back in the game - but Ghana still have the advantage on away goals.
Video Assistant Referee
Nigeria 0-1 Ghana (0-1 agg)
The referee is now checking VAR for a possible Nigeria penalty - and decides it's a spot-kick!
A massive chance for the Super Eagles to get back into the tie...
Post update
Nigeria 0-1 Ghana (0-1 agg)
Oluwashina Okeleji
BBC Sport Africa in Abuja
Nigeria looking to bounce back after conceding early on.
Victor Osimhen’s effort beats Wollacott but agonisingly wide.
The Super Eagles have with a great chance inside the box but the Ghana defence reacts quickly to thwart Ademola Lookman and Osimhen.
Remember that away goals do count in this tie, meaning Nigeria now need two goals against the Black Stars and hope they don’t concede another.
Post update
Senegal 1-0 Egypt (1-1 agg)
Egypt keeper Mohamed El Shenawy goes to ground as he claims a deep cross.
He's then hit by a water bottle thrown from the crowd.
He complains to the referee - and there are certainly a few water bottles beside the goal behind him.
Then the laser pen is trained on El Shenawy. Senegal forward Sadio Mane pleads with the crowd not to get involved.
Senegal's fans are certainly up for this. It's been a tightly-contested first 15 minutes on the pitch.
GOAL: Nigeria 0-1 Ghana (0-1 agg)
Thomas Partey (10 mins)
Ghana midfielder Thomas Partey hits it hard from outside the box and it goes through Francis Uzoho's hands!
Nightmare for the Nigeria keeper!
Ghana will be heading to Qatar as it stands. The Super Eagles need two goals now!
Post update
Senegal 1-0 Egypt (1-1 agg)
Tensions are running high already on the sidelines.
Algerian referee Mustapha Ghorbal has to come across to the dugouts to have words with Senegal boss Aliou Cisse and Egypt's Carlos Queiroz.
Queiroz was no stranger to quarrels with the officials during the Nations Cup. Someone in the crowd has a laser pen trained on the former Real Madrid coach, too.
It could be a very long evening for Ghorbal...
GOAL: Senegal 1-0 Egypt (1-1 agg)
Boulaye Dia (4 mins)
Talk about a fast start - and Senegal have the goal they craved!
It was a scrappy one, from a free-kick just outside the box on the left.
The ball goes to the back post and there's a weak clearing header at the back post which falls to Boulaye Dia.
The striker controls and stabs home from close range, and the stadium erupts.
KICK-OFF
Nigeria 0-0 Ghana (0-0 agg)
Nigeria gets the game under way in a packed-out MKO National Stadium in Abuja.
KICK-OFF
Senegal 0-0 Egypt (0-1 agg)
Under way in West Africa.
Eguavoen rings the changes for Nigeria
Nigeria v Ghana (0-0 agg) (17:00 GMT)
Oluwashina Okeleji
BBC Sport Africa in Abuja
Nigeria coach Augustine Eguavoen rings changes to his starting XI. There are major adjustments at the back, midfield and significant changes in attack.
Super Eagles fans and local media demanded for tactical changes and a lot of them will applaud the decision to make five changes to the line-up.
Leicester City winger Ademola Lookman makes his first start for the Super Eagles.
Ghana head coach Otto Addo goes with an unchanged XI.
Nigeria XI: Uzoho, Aina, Troost-Ekong, Balogun, Bassey, Onyeka, Etebo, Aribo, Dennis, Lookman, Osimhen.
Ghana XI: Wollacott, Odoi, Mensah, Amartey, Djiko, Partey, Iddrisu Baba, Kudus, J Ayew, Fatawu Issahaku, Afena-Gyan.
Little to separate West African heavyweights
Nigeria v Ghana (0-0 agg) (17:00 GMT)
This West African heavyweight match up was the only play-off game to end goalless on Friday, and more than bragging rights are up for grabs in the 'Jollof derby'.
Both sides had chances to win the game in Kumasi, with both goalkeepers pulling off good saves as the first leg ended in a 0-0 stalemate.
The Super Eagles thought they earned a penalty before the referee went to the VAR monitor and overturned his original decision.
With away goals rule in place, any score draw will send Ghana through to Qatar. Should there be another goalless draw in Abuja, the game will head to extra time and penalties if required.
Nigeria are bidding for a fourth successive World Cup appearance, while Ghana missed out on Russia 2018.
Senegal chase two-goal victory
Senegal v Egypt (0-1 agg) (17:00 GMT)
Riham Eldeeb
BBC Arabic
African champions Senegal must win against Egypt at the Abdoulaye Wade Stadium in Diamniadio to have a chance to qualify for the 2022 World Cup.
The Lions of Teranga head into the game seeking to overturn their deficit after falling to a slender 1-0 defeat when the sides went head-to-head in Cairo last Friday.
Liverpool star Mohamed Salah was at the heart of the action when his shot deflected in off Saliou Ciss in the opening four minutes, which was enough to separate the sides.
Only a 1-0 win for Sadio Mane and his Senegal team-mates would force extra-time and penalties, having won a shoot-out in the Nations Cup final against the Pharaohs at the Olembe Stadium in Yaounde last month.
Victory by a two-goal margin will see the West Africans safely though.
However, Senegal will feel confident of overturning their one-goal deficit as they return home in their new stadium
Team news
Senegal v Egypt (0-1 agg) (17:00 GMT)
Senegal boss Aliou Cisse makes four changes in a bid to turn this tie around.
Pa Abdou Cisse, Youssouf Sabaly, Ismaila Sarr and Boulaye Dia all come into the starting line-up.
Egypt make two changes at the back, with Yasser Ibrahim and Rami Rabia coming into defence while Omar Marmoush comes in up front.
The injured Mohamed Abdelmonem, the suspended Mahmoud Hamdy and Mostafa Mohamed drop out.
Senegal XI: E Mendy, B Sarr, Cisse, Koulibaly (capt), Ciss, Sabaly, N Mendy, Gana Gueye, I Sarr, Mane, Dia.
Egypt XI: El Shenawy, Gaber, Rabia, Ibrahim, Fetouh, Elneny, El Soleya, Fathi, Marmoush, Trezeguet, Salah (capt).
Post update
Senegal v Egypt (0-1 agg) (17:00 GMT)
Senegal fans are certainly flocking to the stadium to support their team, with BBC Sport Africa's Babacar Diarra reporting long queues outside the ground over two hours before kick-off.
Teranga Lions welcome Egypt to new den
Senegal v Egypt (0-1 agg) (17:00 GMT)
Senegal are looking to turn around a first-leg deficit in a re-match of the 2021 Africa Cup of Nations final.
The West Africans lifted the continental silverware for the first time after beating Egypt on penalties in Cameroon last month, but could miss out on the World Cup after Saliou Ciss' own goal in the first leg.
This match is being played at the brand-spanking-new Abdoulaye Wade Stadium.
The 50,000-seater in Diamniadio was opened to great fanfare a month ago.
Can the Teranga Lions fans immediately make it an intimidating atmosphere for Egypt?
Fixtures
Here's what's in store:
Ten teams - and just five spots in Qatar
#bbcfootball
African World Cup qualifying reaches its denouement this evening with the second legs of the five play-off ties being played around the continent.
With just five spots provided at Qatar 2022, some traditional heavyweights and big-name players will miss out on the tournament.
Liverpool forwards Sadio Mane and Mohamed Salah are going head-to-head as Senegal host Egypt in Dakar.
All five ties are delicately poised and, with the away goals rule in force, there will no doubt be some nervous moments ahead for coaches and supporters alike.
We'll keep you up to date with all the action from now until the bitter end, bringing you all the goals as they go in.