Midfielders Henderson and Keita are progressing well as they recover from hamstring problems, but both are unavailable for Saturday’s trip to Emirates Stadium.
Salah, meanwhile, wore a wrist support in training earlier this week - but Klopp confirmed on Friday that the Egyptian is in contention to face the Gunners.
“Hendo feels really good but it will be probably the start of the week when he will be back in training,” the manager said during his pre-match press conference.
“Naby [will be the] end of this week. It doesn’t make a big difference match-wise, but that’s how it looks.