Jurgen Klopp says he is awaiting further assessment to determine the seriousness of Naby Keita's latest injury.
The Liverpool midfielder hasn't played a minute this season after missing the opener at Fulham with illness before failing to get off the bench in the 1-1 draw with Crystal Palace last week.
The Guinea international was absent from the 2-1 defeat to Manchester United on Monday evening after suffering a setback on Sunday. Klopp is unsure about the severity of the problem for the £52m midfielder as he lamented his growing injury concerns that sees him without as many as nine first-team players.
