Liverpool boss Jurgen Klopp has confirmed Jordan Henderson and Andy Robertson are both available for Wednesday's clash with Porto.
Henderson appeared from the bench in Saturday's win over Arsenal, a match Robertson missed due to an injury picked up playing for Scotland.
"We always respect the competition but we have to think about ourselves, our schedule and the situation of our players first," Klopp said on Tuesday.
"Hendo, we will see. Yesterday, I would say maybe he was not at 100 per cent. So he can play, he can do pretty much everything but it's about really being at 100 per cent fit.
"So I thought when he came on against Arsenal it was just to see the game out and controlling a little bit – that was exactly actually what he had to do from the rehab point of view, so he used these few minutes. But now we have to see. I don't know 100 per cent.
"Robbo, similar. Both are OK, but are both now ready to play, ready to start with the schedule, with games coming up? We have to make these decisions.
"We didn't make these decisions yet, to be honest, because, how we all know, in this time of the season the medical department has a big hand in line-ups. So we will see."