Curtis Jones, Harvey Elliott, Pedro Chirivella and Neco Williams all missed Liverpool under-23's Premier League Cup clash with Huddersfield Town on Friday due to involvement with first-team training.
The quartet, who have starred in the run to the senior FA Cup fifth round, could feature in Monday's Premier League Cup visit of Sunderland.
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Ki-Jana Hoever, Sepp van den Berg and Liam Miller have all started for Neil Critchley's development side at Kirkby tonight.
Liverpool released images from Friday's first-team training session that included Jones, Elliott, Chirivella and Williams.
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Jurgen Klopp could choose to include any of the four in his squad for Monday's visit of West Ham United.
The manager confirmed that captain Jordan Henderson will miss the Premier League clash after sustaining an injury in the Champions League defeat to Atletico Madrid.
