The Netherlands, Argentina, France, and England have already qualified for the World Cup quarter-finals, but four last-16 matches remain.
Today, surprise package Japan will face Croatia, while favorites Brazil will face South Korea.
On Tuesday, Morocco will face Spain, and the round will end later that day when Cristiano Ronaldo will try to inspire Portugal to victory over Switzerland.
Round of 16 fixtures for the Qatar 2022 World Cup
The knockout phase began with the Netherlands easily defeating the United States 3-1.
Lionel Messi powered Argentina to a 2-1 win over Australia, thus Louis van Gaal’s men will face Argentina in the final eight.
France’s all-time leading scorer, Olivier Groud, became France’s all-time leading scorer when they defeated Poland, while England defeated Senegal 3-0 after some tense moments in the first half to set up a battle with Les Bleus.
Check out the essential details for all of the last-16 games below.
Saturday, December 3
Netherlands 3-1 United States (Khalifa International Stadium, Al Rayyan)
Argentina 2-1 Australia (Ahmad bin Ali Stadium, Al Rayyan)
Sunday, December 4
France 3-1 Poland (Al Thumama Stadium, Doha)
England 3-0 Senegal (Al Bayt Stadium, Al Khor)
Monday, December 5
Japan vs Croatia (Al Janoub Stadium, Al Wakrah, 3pm, BBC One)
Brazil vs South Korea (Stadium 974, Doha, 7pm, ITV1)
Tuesday, December 6
Morocco vs Spain (Education City Stadium, Al Rayyan, 3pm, ITV1)
Portugal vs Switzerland (Lusail Iconic Stadium, Lusail, 7pm, ITV1)
Quarter-finals. Friday, December 9
Japan or Croatia vs Brazil or South Korea (Education City Stadium, Al Rayyan, 3pm)
Netherlands vs Argentina (Lusail Iconic Stadium, Lusail, 7pm)
Saturday, December 10
Morocco or Spain vs Portugal or Switzerland (Al Thumama Stadium, Doha, 3pm)
England vs France (Al Bayt Stadium, Al Khor, 7pm, ITV1)
Semi-finals: Tuesday, December 13 and Wednesday, December 14
Third-place play-off: Saturday, December 17
Final: Sunday, December 18
All kick-off times are GMT.