ESPNFC.com's editorial desks from around the world ranked the remaining 16 teams at the World Cup. Here is a collated countdown. Tell us what you think in the comments section or on Twitter.
1. Brazil (pre-tournament rank: 1)
They won their group but did not convince. Are they too reliant on Neymar?
2. Argentina (4)
Lionel Messi has come to play. Where is the rest of their much-vaunted attack?
3. Germany (3)
Did Ghana expose defensive frailties that will be their undoing?
4. Netherlands (8)
Can a two-man team win the World Cup?
5=. Colombia (9)
Never mind Falcao; James Rodriguez is their man man now -- can he inspire them further?
5=. France (12)
The ghosts of 2010 have been banished, but can Didier Deschamps' inexperienced side win the big games?
7. Belgium (7)
Three group stage wins were a positive, but do they have enough to make a deep run?
8. Chile (10)
They were too good for the holders, but can they knock out the host nation?
- Insider: Ranking the Round of 16
- Grantland: Sweet 16 Power Rankings
9. Mexico (20)
After only just qualifying, they have impressed. Can they pass a daunting test vs. the Netherlands?
10. Costa Rica (27)
Will the story of the tournament so far have another chapter to add vs. Greece?
11. Uruguay (11)
Without the suspended Luis Suarez, can the likes of Edinson Cavani step up?
12. USA (19)
The group of death was safely negotiated, but will fatigue restrict any further progress?
13. Switzerland (14)
They bounced back following their French humiliation -- can they now surprise Messi and co?
14. Nigeria (22)
Pushing Argentina close was one thing, but will in-form France be too great a test?
15. Greece (26)
They'll fancy beating Costa Rica, but have they got enough goals in them to get by?
16. Algeria (31)
With memories of 1982 to motivate, they couldn't beat Germany, could they?