Jurgen Klopp says Virgil van Dijk and Joe Gomez have looked 'really good' in preseason training.
Van Dijk, Joe Gomez, Joel Matip and Trent Alexander-Arnold have all returned from injury to take part in Liverpool's preseason training camp in Austria.
Fronting up to the media on Tuesday, Klopp gave up an update on the quartet.
"No, they aren't [at the same level as the others], but it's different," Klopp signalled to Liverpool's official website.
"Let's start with: all four look really good, I have to say. Look really good.
"Now we are in constant talks with the medical department, the fitness department, the rehab department about what is right for them today: do they have to do maybe a little bit more than the rest of the group, do they have to do a little bit less?
"So, especially Virg and Joe will not have double sessions now for the first few days with the team; they have a second session of the day but it's with Andreas Schlumberger, with the rehab department, physiotherapy, these kinds of things.
"That's for these two. [They] look really good. I don't know exactly when we can make the next steps but it will happen in the next four weeks, for sure – we will get a big step forward.
"Joel looks good, absolutely, he is the closest probably to normal training and then we will see when we get him started for playing.
"Trent was a serious enough injury but now not a major one, I would say. He is close but in the moment, probably the next five or six days he has a special programme: from time to time with the team, probably from time to time by himself. But then in five or six or seven days he should be in normal team training."
