Lallana suffered a groin injury during the first half of Albion's 2-1 win at Aston Villa last Saturday. The 32-year-old claimed an assist in the victory but didn't appear after the interval and was replaced by Joel Veltman.
Prior to his move south, the 32-year-old spent six years at Anfield and helped them to the Premier League and Champions League triumphs.
The former England international has impressed in the early stages of his Albion career and will be eager to face his old teammates but Albion head coach Graham Potter offered a cautious update.
"Well, we've got a couple coming back," said Potter. "Leo Trossard will be available in the squad. He's trained a couple of times with us. So that's good news.
"And Adam Lallana, we still need to give him a bit more time after the weekend.
"Solly had a slight feeling in his ankle but nothing too bad. I think he should be okay. Other than that I think we’re pretty much as we were against Villa."
Potter also admitted that Lallana has been a valuable source of information as he prepares to face a Liverpool team that comfortably beat Leicester 3-0 last time out in the Premier League.
"We talk a lot generally anyway," said Potter. "So it's totally normal that you would chat about somewhere where he spent seven years of his career.
"Yeah, we’ve had a slight chat but he's a player and that's his responsibility. My responsibility, as a coach is to try to pick the right team and to put an idea together that gives us a chance in the game, but it would be a bit foolish of me not to use Adam as a resource."
Potter also confirmed Davy Propper will be available for selection having recovered from a stomach bug and Achilles problems. Propper has yet to feature in the Premier League for Brighton this season.
Brighton will however be without the considerable talents of their young wing back Tariq Lamptey. The former Chelsea man was sent-off at Aston Villa having picked up two yellows in quick succession.
Potter admitted it's a huge blow but said he has options available to adapt.
"It goes without saying there isn’t another Tariq," said Potter. "We have to be honest about that. So that is part of the work he have been doing this week, to make sure we go with the right option.
"There’s plenty of possibilities, that’s the positive I suppose with using players in different positions.
"He's disappointed to miss the game," said Potter. "Disappointed that he got the red card, I think it's all a learning experience for him.
"And as I said before, he's done a lot really, really well. And there are things that he can improve on and that's normal for a player of his age and experience.
"But he has the right mentality and he’ll have to just bide his time, sit this one out and be ready for the next match."
Two players who approach the match in confident mood is Solly March and Danny Welbeck. Both scored well taken goals as they claimed three points at Villa and both will be keen to continue their fine form against the Premier League champions.
"Everybody's benefited from a win," Potter said. "We’d played quite well and we'd talked a lot about performances.
"But, of course, when you don't get the results, there's always a bit of pressure around and I’m pleased for the players in that regard that they came through that tough moment and got the three points.
"Danny has just been enjoying his football, and he's happy at the club and just wants to help the team. And Solly is benefiting from playing that wing-back role – he does it well.
"He came back from his ankle quite quickly and went straight into 90 minutes. So again, he's one that we just need to monitor a bit but we're really happy with them both."