"Motivation couldn't be higher," said FC Porto coach Paulo Fonseca ahead of Tuesday's meeting with FK Austria Wien and a must-win match for both of the teams.
Porto lie third in UEFA Champions League Group G but know Tuesday's fixtures represent an opportunity to get ahead of second-placed FC Zenit, one of two teams already to have come away from the Estádio do Dragão with victory in the section. Austria, meanwhile, have only one point and no goals so far in their debut campaign but Nenad Bjelica stresses that patience will be a virtue in Portugal.
• Porto are a point behind second-Zenit and to overtake them must win and hope the Russian side do not defeat group winners Club Atlético de Madrid in St Petersburg. Porto will be out if they do not win and Zenit do. Austria, three points behind Porto, must win to have any chance of even a UEFA Europa League berth.
Paulo Fonseca, coach
If we want to get through to the next phase we have to win tomorrow, and that's our only thought. We'll use an offensive strategy against Austria, a strong team that have been improving in the last few matches. [Juan] Quintero has a lot of talent, but I can't say if he will play tomorrow though he has been impressing and taking on board our playing systems.
FC Porto have to be motivated all the time, yet this game is completely obligatory to win, which means motivation couldn't be higher. Although Atlético are resting some players in Russia, I believe they want to win, and looking at the strength of their squad, they can get a good result there.
Saturday: Porto 1-1 CD Nacional (Jackson Martínez 52; Mário Rondon 82)
Helton; Danilo, Maicon, Otamendi, Alex Sandro; Fernando, Herrera (Ricardo 87), Lucho; Josué (Quintero 65), Varela (Licá 76), Jackson Martínez.
• Porto dropped points at home in the league for the first time this term as their lead at the Portuguese summit was slashed to a point.
Juan Quintero returned on Saturday after two weeks out with a thigh injury. Nabil Ghilas was absent after returning from international duty with a muscle problem.
Nenad Bjelica, coach
We want to take the points and our hopes are high – we didn't have any luck in our first match against FC Porto. We have to be disciplined in defence because Porto are a great team, but if we play like we did in Vienna we can get something out of the game.
I'm optimistic because of my team's form, though a side that has suffered setbacks like Porto have in their last few games will want to come back strongly tomorrow. The longer we hold them at 0-0, the better our chances, as their team and supporters begin to get impatient. We are a team, we win as one and lose as one.
Saturday: FC Admira Wacker Mödling 0-5 Austria Wien (Hosiner 20 40 73; Murg 27; Suttner 55)
Lindner; Koch, Rogulj, Ortlechner, Suttner; Murg (Okotie 76), Dilaver, Holland, Royer; Hosiner (Luxbacher 75), Kienast (Jun 64).
• Philipp Hosiner scored a hat-trick as Austria recorded their biggest away victory in the Austrian Bundesliga in nine years.
Alexander Gorgon could be out until the new year after knee surgery. Marko Stanković has not featured since being forced off with a muscular problem on matchday three and Florian Mader has a calf injury.
• Porto beat Christoph Daum's Austria Wien in the 2002/03 UEFA Cup second round en route to winning the trophy under José Mourinho. Derlei struck the only goal of the first leg in Vienna after 70 minutes and scored again in the return, making it 2-0 with four minutes remaining to add to Hélder Postiga's first-half goal.