Can was replaced by James Milner after just 27 minutes on Saturday, going down despite no contact from an opponent.
With the 24-year-old’s contract set to expire at the end of the season, this sparked concerns over whether Can had played his last game for the Reds.
But speaking after his side’s dismantling of Watford at Anfield, Klopp stressed that problems with his back weren’t “too serious,” and confirmed he is still likely to join up with the Germany squad next week.
“[It was his] back. He doesn’t think, and I don’t think, it’s too serious. But it was too serious to continue,” he explained.
“He had that problem a little bit during the week, we gave him one extra recovery day, he thought it would work and he trained normally yesterday.
“It was one header, and maybe because of the temperature, it’s a muscle thing.
“But it should not be that serious. He’ll go to the national team I think, and will have treatment there.
“Their game isn’t tomorrow. We’ll know more [soon] but it shouldn’t be an issue.”
Can was named in Joachim Low’s squad for the international break on Friday, and will hope to feature against Spain (March 23) and Brazil (March 27).