The Egypt captain was taken to hospital for X-rays amid fears he had broken his collarbone but those initial worries seem to have eased.
Salah, 25, met the national team doctor and Egyptian FA president Hany Abu Rida in Spain on Wednesday.
"I think that Liverpool will not allow Salah to take the cortisone because it is risky for the player in the long term and will press hard to complete the treatment for two months, which unfortunately means that we will not see the star Mohamed Salah in the World Cup". "It's a shame in a game like this and after a season like this. Today I lost my team the game and I feel sorry for everyone", he said.
"The second one is because of the first one".
Karius tweeted on Sunday afternoon: "Haven't really slept until now... the scenes are still running through my head again and again..."
"We beat the best teams in Europe".
Klopp has earned rave reviews for the work he has done at Anfield this season, promoting a thrilling brand of attacking football but he has yet to shake off his poor run in finals.
The window shuts on August 9 this year, three weeks earlier than in previous seasons.
"Playing in a World Cup is a dream", Neymar said.
"There's not a lot to say about the rest to be honest".
From 35 metres out, the Welshman's swerving effort appeared to be comfortably covered by Karius as Liverpool desperately clung to hope they could conjure another equaliser in the final ten minutes.
Salah had been instrumental in Liverpool's unexpected run to their Champions League final since 2007.
"It's not about him and mistakes he might have made", he told BT Sport. We wanted everything and got nothing, or minus something with the injury of Mo.
"When we win, we win together".
"We know what we've achieved and we know how good we've been".
Salah, who will carry Egypt's hopes at next month's World Cup in Russian Federation, then crumbled to the ground for a second time and was seen crying when he got up and then left the field to be replaced by Liverpool's England worldwide Adam Lallana.