Qualification and seeding are on the line this week as the 2012-13 UEFA Champions League reaches the end of its group stage.
All 32 teams will play in eight groups over the two-part Matchday 6, but only 16 will remain in the competition. By Wednesday night, eight clubs will have qualified for the knockout stage as group winners. Eight more will have qualified as runners-up.
That's not all. Eight more third-placed clubs will be eliminated from the Champions League but will transfer to the Europa League. Finally, the eight last-placed teams will be eliminated from Europe for this season.
Keep reading for everything you need to know about all the games this week in Europe's premier club competition.