"Wow, that is a crisis", Klopp said.
'Yes, he's ready. Why should I think that about Bobby?
"On the defensive side the last two games were outstanding, flawless from him", the boss said.
'It's much too early to make something of it and talk to him constantly about what and when and stuff like that, ' said Klopp.
Firmino is expected to start the Premier League fixture, despite Daniel Sturridge impressing on his first start of the season in midweek against the French giants.
"He had fantastic offensive situations in both of the last games".
While Salah struck a brace on global duty for Egypt, he has not found the net in his last three club appearances in all competitions.More news: Baker Mayfield completes first pass of his National Football League career
The chorus of You'll Never Walk Alone under the lights is enough to pick up even the least motivated of players and the enthusiasm goes hand in hand with Jurgen Klopp's gegenpressing style.
Southampton will be without Danny Ings as he's not allowed to play against his parent club while Manolo Gabbiadini will face a late fitness test on a hamstring injury.
Liverpool midfielder Alex Oxlade-Chamberlain has kicked a ball for the first time after knee surgery last April.
That was the message from Jurgen Klopp, as he took aim at the critics who are beginning to question the contribution of the Liverpool star this season.
"Dejan is close. He looks really fit". It's a different situation and that's all.
"We are really waiting for him without making pressure on him and we know that it will take a long time but he will always be a very important part of the squad because of the guy he is".
"He's a big miss for us but he is around most of the time and so is still working on the good atmosphere in and around the team".