Use icon at the top of page for BBC Radio 5 Live radio commentary
FT: Cameroon 1-0 Brazil - Aboubakar scores and then sent off
FT: Serbia 2-3 Switzerland - Shaqiri opens scoring, Mitrovic & Vlahovic turn game around, Embolo equalises & Freuler puts Swiss ahead
Brazil have guaranteed their last-16 place, but need a point to secure top spot
Switzerland would progress with a win, a point would be enough if Brazil avoid defeat
Cameroon must win and hope the other game ends in a draw or a Serbia win
Serbia must win and hope Cameroon do not win to progress - if both win, it goes to goal difference
Get Involved: #bbcfootball, text 81111 (UK only – texts will be charged at your standard message rate), or text your comments via WhatsApp on 03301231826
Xherdan Shaqiri
It had to be him!
Ricardo Rodriguez's low cross is cleared as far as Djibril Sow, who shows great composure to pick out Xherdan Shaqiri on the right side of the penalty area.
The former Liverpool man doesn't strike it particularly cleanly but the ball takes a deflection off Strahinja Pavlovic on its way in.
As it stands, Switzerland are heading through to the last 16.
Image source, Getty ImagesSerbia 0-0 Switzerland
It is early days, but already you can see Switzerland are trying to stretch Serbia, who are sTaying more compact and trying to play through the midfield.
Their defensive line is quite low so far, too.
Image source, OptaSerbia 0-0 Switzerland
Dusan Tadic has been everywhere so far. The Ajax man wriggles his way past a couple of Switzerland defenders before cutting the ball back for Filip Kostic, but Switzerland manage to clear the latter's cross.
Kostic will be running at Widner at every opportunity now.
Cameroon 0-0 Brazil
Phil McNulty
BBC Sport chief football writer at Lusail Stadium
Brazil's mainly second string - hardly call it weakened - have started smoothly, knocking the ball around and dominating Cameroon, Tite's squad is so strong. So many options.
Image source, Getty ImagesCameroon 0-0 Brazil
Brazil are taking control now as Gabriel Martinelli looks for Gabriel Jesus with a ball into the box but the Cameroon defence is able to deal with the danger.
Serbia 0-0 Switzerland
Serbia have just about shaded the opening stages but they look a little uncomfortable when trying to play out from the back.
They manage to feed Filip Kostic down the left and the Juventus winger is brought down by Silvan Widmer, who is shown the game's first yellow card.
Switzerland will be joining Brazil in the last 16 as things stand.
But remember, Serbia will leapfrog Switzerland with a win tonight.
Image source, BBC Sport/Getty ImagesTweet using #bbcfootball or Text 81111 (UK standard rates apply)
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Serbia 0-0 Switzerland
Emma Sanders
BBC Sport at 974 Stadium
This has been a great game so far! Very end-to-end and both teams attacking with purpose. It's still a pretty dull atmosphere but the Serbia fans were given something to chant about with that effort that struck the post.
Cameroon 0-0 Brazil (19:00 GMT)
Andy Cryer
BBC Sport in Qatar
Every time Brazil attack, there is an expectant roar from their incredible supporters.
They are almost rewarded as Gabriel Martinelli sees a header tipped over. The reaction is deafening.
Cameroon 0-0 Brazil
Chris Sutton
Former England striker on BBC Radio 5 Live
I think Martinelli should score, he heads it straight at the keeper who gets a big left hand. He could have gone back across the keeper, I think that's a poor miss.
Cameroon 0-0 Brazil
Big save by Devis Epassy!
Fred plays a brilliant ball into the box, putting it right on Gabriel Martinelli's head and the Arsenal forward directs an effort towards goal that Epassy does well to push over.
First chance of the game and it was a good one.
Cameroon 0-0 Brazil
Brazil again build down the right before Fabinho sends the ball into the box, but Christopher Wooh heads away.
A pretty low key start so far but, as we've seen in these group-stage games, things can dramatically explode to life quickly.
Serbia 0-0 Switzerland
So close to a Serbia opener! Andrija Zivkovic cuts inside from the right and curls a sumptuous effort towards the far corner which crashes off the upright and bounces clear.
Switzerland breathe a huge sigh of relief.
Serbia 0-0 Switzerland
Dusan Tadic bundles his way past Nico Elvedi inside the penalty area but fails to find a team-mate with his cut-back.
Serbia are starting to gain the upper hand here...
Cameroon 0-0 Brazil
A few robust challenges flying in early doors. We're not even 10 minutes in and Eder Militao and Nouhou Tolo have already been booked.
Image source, Getty ImagesSerbia 0-0 Switzerland
Ruben Vargas sends a looping cross towards Breel Embolo at the far post, but Vanja Milinkovic-Savic comes out to collect.
The Serbia keeper has been a busy boy in the early stages.
Image source, Getty ImagesCameroon 0-0 Brazil
Chris Sutton
Former England striker on BBC Radio 5 Live
Nouhou may be in a bit of trouble in this game because that's twice already in the opening six minutes that Antony has gotten the better of him.
Tweet using #bbcfootball or Text 81111 (UK standard rates apply)
Alex: Brazil's 'second' team would still have a good chance at winning this cup... hard to imagine a team beating them this year.
Cameroon 0-0 Brazil
It is a big night for Antony as he makes his first World Cup start and he is clearly keen to impress as he spins his marker on the right to try and charge up the pitch but is then pulled back.
Image source, Getty Images