TONIGHT'S all about the Europa League and here's a summary of how the groups stand, what teams are through and what others need to do to make the last 32.
Man United need a draw at Zorya to progress from Group A but the game is doubtful due to a frozen pitch.
United trail Fenerbahce by one point and lead Feyenoord by two so could even qualify if the Turks win in Holland.
Southampton host Hapoel Beer Sheva in a Group K decider as both teams bid to advance into the knockout stages alongside Sparta Prague.
Dundalk look to continue their dream campaign as they face Maccabi Tel-Aviv in a vital Europa League Group D showdown. Both sides have four points and the League of Ireland side must hope AZ Alkmaar don't beat qualified Zenit St Petersburg otherwise the Dutch club will clinch second place in Group D.
Roma have won Group E and their hosts Astra can join them with a win while Austria Vienna will hope they slip up as they head for Viktoria Plzen.
Zenit, Schalke and Shakhtar Donetsk look to maintain their 100 per cent records in the competition with qualification already secured.
Gent must win at Konyaspor if they are to have any chance of climbing above Sporting Braga and finish second behind Shakhtar in Group H.
Krasnodar are guaranteed the runners-up spot behind Schalke in Group I regardless of their result at Nice due to their head-to-head advantage over Salzburg.
In Group J Qarabag must beat Fiorentina to secure a last-32 spot for the first time in the Azerbaijani club's history. PAOK Salonika and Slovan Liberec face off in the other group's clash with both sides needing three points and hoping the other result goes in their favour to have any chance of going through.
Group L is closely poised with all four sides in contention to qualify for the next round. A draw between group leaders Osmanlispor and FC Zurich will see the Turkish side advance while Villarreal host Steaua Bucharest and need to better FC Zurich's result to secure their passage into the last 32.
With Ajax already safely through victories for both Celta Vigo, who travel to bottom-placed Panathinaikos, and Standard Liege could see goal difference determine who finishes behind the Dutch side in Group G.
Elsewhere, Anderlecht host St Etienne to see who will finish top of Group C as Mainz and Qabala are out while Apoel Nicosia, Olympiakos, Athletic Bilbao and Genk have secured their passage into the last 32 in Group B and Group F respectively.