With just one day’s break on Friday before we head into four days of frantic knockout action, Sportsmail brings you all you need to know about the eight matches.
The line-up for the last 16 of the World Cup in Russia was completed after England v Belgium
FRANCE v ARGENTINA
Venue: Kazan Arena, Kazan
Date: Saturday, June 30
Haven’t really got going despite winning their group. Defence looks solid though even if the attack hasn’t fired yet and the likes of Antoine Griezmann, Paul Pogba and Kylian Mbappe will surely click eventually.
Poor. Scraped through by the skin of their teeth thanks to a late Marcos Rojo winner against Nigeria after dire performances in defeat against Croatia and while drawing against Iceland. With Lionel Messi though, anything is possible.
Key match-up: Paul Pogba v Javier Mascherano
Croatia made mincemeat of Argentina’s midfield and Mascherano, who gave away a penalty against Nigeria, is a fading force. The introduction of Ever Banega against Nigeria helped him but if Pogba turns up France could dominate the game.
Verdict: France to edge it.
Lionel Messi (No 10) is mobbed by his Argentina team-mates after scoring against Nigeria
URUGUAY v PORTUGAL
Venue: Fisht Olympic Stadium, Sochi
Date: Saturday, June 30
Eased through the gears in the group stage, culminating in an emphatic win over Russia which will have their rivals worried. Lacked creativity against Egypt and Saudi Arabia but their mean defence is yet to concede a goal.
Cristiano Ronaldo’s hat-trick against Spain aside, they’ve been average. But as long as he’s in the side then they’ll argue that’s fine. Worryingly though their defensive solidity from the Euro 2016 triumph seems to have abandoned them.
Key match-up: Diego Godin v Cristiano Ronaldo
Arguably the best centre back in the world against arguably the best centre forward in the world. The two know each other well having done battle in Madrid for Atletico and Real respectively over the last eight years.
Verdict: Low-scoring game that could go to extra-time. Portugal to nick it.
Cristiano Ronaldo reacts after missing a penalty against Iran on Monday night
SPAIN v RUSSIA
Venue: Luzhniki Stadium, Moscow
Date: Sunday, July 1
Patchy. Like their Iberian rivals, surprisingly struggled against Iran and particularly Morocco. David De Gea has made uncharacteristic errors but Diego Costa has provided the focal point their fluid midfield needs. Isco has been exceptional.
Saudi Arabia and Egypt were caught like rabbits in the headlights of this super-fit Russian machine but they reverted to type…