Alex Oxlade-Chamberlain, Ben Woodburn and Ki-Jana Hoever are now eligible to play in this season's competition.
Nathaniel Clyne, Pedro Chirivella and Kamil Grabara left the club on loan in January and have been removed from Jürgen Klopp's submitted list along with Dominic Solanke, who joined AFC Bournemouth permanently last month.
The Reds' Champions League campaign resumes with a last-16 tie against Bayern Munich, the first leg of which takes place at Anfield on Tuesday February 19.