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Champions League permutations: Who can go through and who is on the brink of elimination?
Find out who is on the cusp of reaching the knockouts, who has the Europa League in their sights and who is battling to stay in Europe altogether.
It's that time of the group stage when teams are either eagerly anticipating progression to the knockout phase or looking nervously over their shoulder at possible demotion to the Europa League - or worse, dropping out of European competition altogether.
With Manchester City already through, let's get into who can progress and who is at risk of going out on Matchday 5.
Chelsea can secure their place in the last 16 with a win over RB Salzburg on Tuesday night. Such a result would see them move four points ahead of the second-place side with just one match remaining.
A win for Leipzig against the European champions could see them through, but only if Shakhtar Donetsk lose to Celtic in Glasgow.
With Man City cruising through the group, the attention now turns to second and third place.
A win for Dortmund would see them draw level with City and reach the last 16, but a defeat and a victory for Sevilla at Ramon Sanchez-Pizjuan will keep the group alive going into the final matchday.
Juventus' deficiencies this season have cost them dearly in the Champions League and they are on the brink of elimination heading into Matchday 5.
PSG and Benfica drew 1-1 twice in a week and as a result both are clear favourites to progress. The former will be through if they beat Maccabi Haifa at home, while Benfica can finish the job by avoiding defeat at home to Juve.