Salah scored Liverpool’s opener against Everton at the weekend with a brilliant curling effort from the edge of the box.
But Liverpool’s lead continued to look precarious as the game went on with Klopp’s side unable to find a second goal.
The Reds boss made a bold decision to take off Salah just after the hour mark for Roberto Firmino and it proved costly 10 minutes later when Wayne Rooney equalised from the spot.
Klopp was heavily scrutinised for his game plan heading into the match by dropping Philippe Coutinho and Firmino to the bench and taking off Salah when his side needed a goal.
But the German coach has revealed Salah’s substitution was more down to monitoring his fitness than a tactical choice.
“I took Mo Salah off because he had a hamstring a little bit,” Klopp said.
“Then everyone said ‘how can you take him off?’ and stuff like this. I don’t go out and say ‘yeah, but he is close to being injured.’
“He is not at the moment, thank God. Hopefully we took him off early enough.”
It was revealed heading into the weekend matches that Klopp made 59 changes to his starting line-ups this season – 20 more than any other club in the Premier League.
And he is set to rotate once again this evening when they travel to West Brom.