Given that just three points separate all four teams in Group D, it’s very much all still to play for.
Olympique Marseille made a nightmare start to this campaign, beaten 2-0 in Tottenham and then 1-0 when Frankfurt visited Stade Vélodrome.
Jesper Lindstrøm the only scorer in the Southern France.
At this point, the 1993 winners of this competition had lost 16 of their last 17 Champions League games; remarkable.
But now, Igor Tudor’s side kick off in second, having beaten Sporting CP twice, 4-1 at home and then 2-0 away.
Mattéo Guendouzi and Alexis Sánchez the scorers at Estádio José Alvalade a fortnight ago.
So, if les Phocéens win this one, and Spurs win concurrently, Marseille will reach the knockout stages for the first time since 2011/12.
As for Eintracht Frankfurt, this sole victory, so far, came in the reverse fixture.
On matchday four, they were beaten 3-2 by Tottenham; Daichi Kamada and Faride Alidou scoring in vain in North London.
So, the Europa League winners start the night bottom of the section, but a victory could propel them up to second.
Will there be a winner in this crucial clash at Deutsche Bank Park?