Postpublished at 16:03 British Summer Time 26 June 2019
John Bennett
BBC World Service in Alexandria
What a chance for Nigeria. Odion Ighalo had to square that ball for Ahmed Musa. Two decent opportunities wasted by the ex-Watford man now.
Omeruo gives Nigeria the win with header from a corner
Liverpool's Keita substituted in second half
Win takes Nigeria through to last 16
Emlyn Begley
John Bennett
BBC World Service in Alexandria
What a chance for Nigeria. Odion Ighalo had to square that ball for Ahmed Musa. Two decent opportunities wasted by the ex-Watford man now.
#bbcfootball or text 81111
Sulaimon Adelekan: I am disappointed in the Super Eagles performance so far. This current squad can't win the AFCON, there is enough quality but no tactical input from the bench.
Big chance for Nigeria. Odion Ighalo breaks in behind but he slams into the side-netting from a tight angle. Ahmed Musa in the centre wanted the ball, Ighalo should have passed.
Naby Keita wants a corner but the ball had already gone out of play before he kicked it off Kenneth Omeruo. A sharp Keita would have reached that.
Guinea's Simon Falette blocks Odion Ighalo and goes into the book. If that had been 10 yards closer to goal, the card could have been red. Ighalo gets treatment and pours a bottle of water on his face.
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Ola Aina absolutely Pierre Womes a throw-in towards Wilfried Ndidi, who powers a header inches wide. The referee blows his whistle for a free-kick anyway, Ndidi had fouled his marker there.
Moses Simon has moved onto the left wing now. He cuts it back to Ola Aina, who tries to beat the keeper at his near post from about 20 yards out.
It might have been going wide anyway but Ibrahim Kone stops it to make sure.
It's not the worst free-kick by Francois Kamano but it lands on the roof of the net. That's Guinea's fourth effort of the game.
Free-kick to Guinea right on the edge of the box. Moses Simon brings down Issiaga Sylla.
There isn't VAR until the quarter-finals, that was close to the line.
John Bennett
BBC World Service in Alexandria
Naby Keita is struggling to get into the game. With his lack of match practice, competing with a strong Nigeria midfield of Ndidi, Etebo and Iwobi will be tough. He doesn’t look his normal self at the moment but maybe he needs more time to settle back in after that long lay-off.
Good play by Nigeria winger Moses Simon, who cuts inside, but then his shot is well over the bar.
John Bennett
BBC World Service in Alexandria
The Guinea fans have a fantastic group of formation dancers behind the Nigeria goal. They’re occupying about five rows, accompanied by a band, perfectly in rhythm. Their stamina is as impressive as the players’ work rate in these hot conditions.
Ola Aina is in behind for Nigeria but his cross goes into the hands of Guinea's keeper.
London-born left-back Aina has just joined Torino from Chelsea this summer.
This has been a very entertaining 0-0 so far. Nigeria midfielder Wilfried Ndidi heads just wide from a corner.
John Bennett
BBC World Service in Alexandria
I’m sitting right behind Nigeria boss Gernot Rohr. He’s wearing jeans. That is a brave move in this heat Gernot. Tony Pulis would be proud of his bright, white box fresh trainers though.
Guinea must have identified Nigeria keeper Daniel Akpeyi, who has spent his entire career in Africa, as a weak point. Bordeaux's Francois Kamano is the latest man to have an effort from distance, but it's saved again.
Good defending by Nigeria's Leon Balogun to stop Sory Kaba from speeding away from him - although the Guinea striker shouldn't have given him a chance.
Remarkably, this is Nigeria's first Africa Cup of Nations since winning it in 2013. They failed to qualify in 2015 and 2017.
They didn't qualify in 2012 either. So their last defeat in the actual tournament itself came in 2010.
Guinea employing a shoot on sight policy as Sory Kaba has a long-range effort easily saved.
Is it shoot on sight or shoot on site? Both make sense really.