James Balagizi has temporarily returned to Liverpool from his loan spell at Crawley Town to assess a suspected injury.
Balagizi will undergo tests on the problem having been forced to withdraw from training with the League Two side last Friday ahead of their home game against Stevenage the following day.
It is believed the 19-year-old midfielder picked up the problem while on international duty with England under-20s, where he featured in the wins over Chile, Morocco and Australia towards the end of last month.