The final matchweek of the Champions League group stage is upon us and several teams still have work to do to secure their last-16 places.
Former champions Inter and Liverpool are both yet to qualify from their respective groups, while there are plenty of other big names facing the possibility of elimination as only four knockout berths remain.
Lyon and Shakhtar Donetsk are also in the hunt on Wednesday and here we outline what each side must do to get through this week.
Unlike some of the other pools, this is a straightforward one. Atletico Madrid and Borussia Dortmund are through, while Club Brugge will drop into the Europa League, and Monaco is out.
Atleti will top the group with a win at Brugge, or if Dortmund do not triumph against Monaco.
Qualified: Atletico Madrid, Borussia Dortmund
Europa League: Club Brugge
Barcelona is through as group winner. PSV is out.
However, Tottenham and Inter remain neck and neck. Spurs lead the Italian side on head-to-head away goals and so must simply match its rival's result, yet it travels to Barca as Inter hosts PSV.
One of the more complex groups sees Napoli, PSG and Liverpool vying for two places. Both Napoli and PSG can assure their own progression - the Italians with a draw and Thomas Tuchel's men with a win - but failure to pick up the required results will mean reliance on results elsewhere.
Napoli can lose to Liverpool and go through as long as PSG is also beaten by Red Star Belgrade. PSG is through if Liverpool do not win at Anfield.
Liverpool also still have its fate in its own hands, though. It must win but a 1-0 win or two-goal margin of victory sends it through regardless of PSG's result. The Reds could still finish bottom if it loses and Red Star wins.
This pool is fairly cut and dry. Porto is group winner, Schalke is second. Galatasaray will beat Lokomotiv Moscow to third if it wins against Porto or if the Russian outfit fail to get three points.
Qualified: Porto, Schalke
Benfica is into the Europa League, while AEK is out.
Qualified: Bayern Munich, Ajax
Europa League: Benfica
Manchester City is through and Hoffenheim cannot progress, although it will drop into the Europa League if it wins in Manchester and Shakhtar loses to Lyon.
Perhaps more realistically, only a Shakhtar win can prevent Lyon's progress, while the French club can still finish top of the pile if it wins and City is beaten.
Qualified: Manchester City
Reigning champion Real Madrid is through as group winner, with 2017-18 semifinalist Roma in second. CSKA Moscow - away in Spain - must better Viktoria Plzen's result to reach the Europa League.
Qualified: Real Madrid, Roma
Juventus is through and will top the group with a win at Young Boys. Manchester United must triumph and hope the Bianconeri drop points to earn the top seed. Valencia is in third. Young Boys is out.
Qualified: Juventus, Manchester United
Europa League: Valencia