The Champions League group stages ended on Wednesday with Manchester City going through thanks to victory in Rome.
Here is everything you need to know about what happened in the 96 matches so far before Monday's last-16 draw.
Who is into the last 16?
Arsenal, Chelsea, Manchester City, Atletico Madrid, Juventus, Real Madrid, Basel, Monaco, Bayer Leverkusen, Borussia Dortmund, Bayern Munich, Barcelona, Paris St-Germain, Schalke, Porto, Shakhtar Donetsk
Who drops down to the Europa League's last 32?
Liverpool, Olympiakos, Zenit St Petersburg, Anderlecht, Roma, Ajax, Sporting Lisbon, Athletic Bilbao
Who is out of European competition?
Malmo, Ludogorets Razgrad, Benfica, Galatasaray, CSKA Moscow, Apoel Nicosia, Maribor, Bate Borisov
Who could the English sides face in Monday's Champions League last-16 draw?
Arsenal - Atletico Madrid, Real Madrid, Monaco, Bayern Munich, Barcelona, Porto
Chelsea - Juventus, Basel, Bayer Leverkusen, PSG, Shakhtar Donetsk
Manchester City - Atletico Madrid, Real Madrid, Monaco, Borussia Dortmund, Barcelona, Porto
Country-by-country breakdown of the last-16 teams
4 - Germany (Bayer Leverkusen, Borussia Dortmund, Bayern Munich, Schalke)
3 - England (Chelsea, Arsenal, Manchester City)
3 - Spain (Atletico Madrid, Real Madrid, Barcelona)
2 - France (Monaco, Paris St-Germain)
1 - Italy (Juventus)
1 - Portugal (Porto)
1 - Switzerland (Basel)
1 - Ukraine (Shakhtar Donetsk)
No new faces
Every one of the 16 teams in the knockout stages have been at that stage before.
Chelsea top the scoring charts
Chelsea were the top scorers of all 32 teams in the Champions League group stages with 17.
This is despite the fact that none of their players scored more than two goals. John Terry is their joint top scorer, while Diego Costa is yet to net in the tournament.
Real Madrid perfect
Real Madrid - one of only six teams to ever finish a Champions League group with maximum points - became the first team to do it twice this season.
Their 16 goals were the joint second-highest - along with Bayern Munich and Porto - behind Chelsea.
Barcelona top the pile again
Barcelona have finished top of their Champions League group for an eighth consecutive season.
The last team to beat them to top spot were Chelsea back in 2006-07, with Barca losing to Liverpool in the last 16.
75 and counting - Lionel Messi winning record duel
Lionel Messi and Cristiano Ronaldo came into the season on 67 Champions League goals each, four behind Raul's record of 71.
Messi broke it on 25 November with a hat-trick in Barcelona's 4-0 win at Apoel Nicosia - taking him to 74. He has since scored number 75, against PSG.
However, it is a record that could be broken many times in the coming years, with Ronaldo now up to 72.
Most leaky defence ever
Bate Borisov have conceded a record 24 goals in the Champions League group stages.
They went into Wednesday's game with Athletic Bilbao sharing the record of 22 with Dinamo Zagreb (2011-12) and FC Nordsjaelland (2012-13) and then lost 2-0 to the Spanish side.
The top players of the group stages...
The draw for the Champions League last-16 takes place on Monday 15 December.