Postpublished at 81 mins
Brazil 1-0 Mexico
How did you think Paulinho got on?
Follow game on BBC Radio 5 live
Winners play either Belgium or Japan (19:00 BST) in quarter-final
Neymar finishes Willian cross before setting up Firmino for second
Brazil never lost a World Cup game v opponents from central or north America
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Emma Sanders
Brazil 1-0 Mexico
How did you think Paulinho got on?
Brazil 1-0 Mexico
Fernandinho is coming on for Paulinho. I still feel he should be starting.
Text 81111
Neymar must have the lowest pain threshold of any human being!
Conrad, Halifax
Brazil 1-0 Mexico
Hirving Lozano is such a threat for Mexico. He goes down the outside of Fagner but the Brazilian recovers well and slides in at the right moment to prevent the cut back.
It deflects back off the Mexican and it's out for a goal kick.
Brazil 1-0 Mexico
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Brazil 1-0 Mexico
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Brazil 1-0 mexico
Carlos Vela hasn't given up yet. He drives down the left but his cross is intercepted before a Mexican player can get his head on the end of it.
It falls to Neymar in midfield and Carlos Salcedo brings him down with a thumping tackle. Another yellow card.
Brazil 1-0 Mexico
Willian is given far too much space. He steps inside onto his left foot, sees the space and has a crack.
But it's a tame effort and rolls into the hands of the keeper. He really has been excellent today, Willian.
Brazil 1-0 Mexico
Who did it better? Nerymar or Rivaldo...
Brazil 1-0 Mexico
Dion Dublin
Ex-Aston Villa striker on BBC Radio 5 live
I'm embarrassed for Neymar. He is one of the world's greatest players but when he rolls about on the floor, I just don't get it. Come on young man you're better than that, get on with the game.
Brazil 1-0 Mexico
He spends a lot of time on the ground but when Neymar has the ball at his feet, he's effective.
No player has scored more 2014 and 2018 World Cup goals than Neymar - level with James Rodriguez on 6.
Brazil 1-0 Mexico
Dion Dublin
Ex-Aston Villa striker on BBC Radio 5 live
Neymar, Willian, Coutinho and Jesus are all running at the Mexico defence. But they have stayed resolute and are they are strong-willed. They just might get a chance playing like this.
Brazil 1-0 Mexico
Oh dear. Neymar is down on the touchline, rolling around in agony.
He's claiming Miguel Layun stood on his ankle and wants it to go to VAR but the referee has decided otherwise.
Brazil 1-0 Mexico
Patrick Jennings
BBC Sport in Samara
This past 20 minutes has just been absolutely sensational. So absorbing after that cagey first half.
You have to say Willian has been the real catalyst for Brazil. The man can run with a football.
Brazil 1-0 Mexico
Mexico are still getting opportinities.
Herrera pokes in a cross from the right and it just misses Giovani dos Santos but falls to Andres Guardado.
The captain opens up his body and blasts it but it's blocked and the opportunity goes missing.
Brazil 1-0 Mexico
Willian has covered plenty of ground today. He's had 56 touches - only Neymar has had more (57).
Brazil 1-0 Mexico
Willian goes running down the left this time. He's been excellent today and his pace sets up another Brazilian attack.
It comes to Neymar in the middle of the box but his strike is deflected out for a corner by Andres Guardado.
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Andrew: Some of the Mexican players are busy going for glory instead of passing to teammates in better positions.
Nadeem: Lack of experience and poor judgement in the final third will cost Mexico this game
David: Willian was anonymous during the group stages and now i know why. He was saving all his energy for the knockout games. Has been terrific today
Brazil 1-0 Mexico
What do you make of Mexican keeper Guillermo Ochoa's performance today? He's been pretty decent in my books.
I'd drop him a high 7.
Brazil 1-0 Mexico
Neymar is on the floor again. Although to be fair to him, he did get a little nibble on the ankle.
The Mexicans haven't given him much sympathy today.