Salah scored the match-winning penalty as Liverpool came from behind to maintain their six-point lead at the top of the Premier League table.
But the Egyptian missed last week’s trip to Manchester United with an ankle problem picked up before the October international break and appeared to struggle with the same issue on Sunday.
Salah was replaced by Joe Gomez with five minutes remaining after going down holding his ankle but Klopp claimed the substitution was simply a precautionary measure.
When asked whether Salah’s problem was serious, the Liverpool manager said: “No. It’s the ankle, the ankle he has struggled with since Leicester game. It is good.
“The longer the game goes, you get tried and you get a knock and feel it more and it makes no sense to push it through.
“We had other players, options to change. That’s what we did. No, nothing serious.”
Klopp was delighted with both Liverpool’s performance and the manner of the victory, having gone behind to Harry Kane’s opening goal after just 47 seconds.
“I am pleased but I expected it as well,” he said. ”An early goal is not the best thing that can happen but sometimes it makes one thing clear, game on.
“The game, I loved. It was a super game, how football should look, how we should play against a really strong good organised side. The counter press was exceptional, we wanted to be really strong in that department.”