Virgil van Dijk is facing up to a spell on the sidelines for Liverpool after suffering a hamstring injury at Brentford.
The Netherlands captain was substituted for Joel Matip at half-time at the Gtech Stadium with the Reds trailing 2-0 at the break following goals from Ben Mee and Yoane Wissa.
Jurgen Klopp initially said the substitution was merely a precaution but subsequent checks have now confirmed a hamstring injury for Van Dijk, who could now be set to miss the rest of the month.