Liverpool forwards Mohamed Salah and Roberto Firmino will miss Tuesday's Champions League semi-final second leg with Barcelona through injury.

Salah left the pitch on a stretcher after an aerial collision with Newcastle keeper Martin Dubravka during Saturday's 3-2 win.

Manager Jurgen Klopp says concussion will keep Salah out, as Liverpool look to overhaul a 3-0 first-leg deficit.

Firmino missed the win over Newcastle with a muscle injury.

"Two of the world best strikers are not available tomorrow night and we have to score four goals," said Klopp.

"It doesn't make life easier but as long as we have 11 players on the pitch we will try."

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