Four teams have already qualified for the knockout stages of the Europa League and numerous others could join them in the penultimate round of group matches tonight.
Salzburg, Dynamo Moscow, Fiorentina and Legia Warsaw are all certain of their places in the round of 32 with two games to play and are now looking to seal first place in their respective groups.
Celtic, of course, could join Salzburg in the progressing from Group D with victory over the Austrians in Glasgow. A draw or defeat may also be enough, if Dinamo Zagreb fail to win at Astra Giurgiu.
Dynamo Moscow will secure top spot in Group E with victory over Panathinaikos, while PSV Eindhoven will follow them in advancing with a victory or draw against Estoril Praia.
Fiorentina play at Guingamp bidding to seal Group K, with the French side seeking to beat PAOK to the runners-up spot with Dinamo Minsk already eliminated.
Trabzonspor will qualify behind Legia Warsaw in Group L with a win against Metalist Kharkiv, but a draw may also be enough.
Roberto Mancini’s Inter Milan require a win at home to Dnipro to secure first place in Group F, but a draw will make sure of qualification. Scottish referee Bobby Madden will be in charge of the San Siro clash.
Tottenham and Beskitas are in line to qualify from Group C.
Defeat Partizan and Spurs advance, but a draw or loss may still be enough if Asteras Tripolis fail to beat Beskitas.
Everton will qualify with victory at Wolfsburg in Group H, while a draw or defeat could be sufficient if there is no winner between Krasnodar and Lille.
The Germans could also advance with victory or a draw.
Napoli will advance from Group I with victory at Sparta Prague, but could also go through with a draw or loss, if Young Boys lose to already-eliminated Slovan.
Sparta are reliant on beating the Italians and Young Boys slipping up to advance prior to the final round of matches.
Dynamo Kiev and Steaua Bucharest could both advance from Group J, while a win for Sevilla at Feyenoord will take them through as winners of Group G. Borussia Monchengladbach will win Group A with victory at Villarreal and Club Brugge will win Group B with a victory at Torino, but draws could also secure their qualification.