The 21-year-old midfielder, who had been out since early November with an ankle problem, struck an equaliser from long range during Sunday's 1-1 draw with West Bromwich Albion.
Critchley's side are back in action on Thursday evening when they host Swansea City in the Premier League International Cup - a game you can watch live on LFCTV and LFCTV GO.
The young Reds - who lost to Villarreal and beat Hertha BSC in their first two group matches - must defeat Swansea to be in with a chance of finishing the pool stage as one of the two best runners-up who will qualify for the quarter-finals.