The No.9, who will leave the club in the summer after eight seasons, has been involved in the Reds' preparations for Saturday's Premier League meeting with Aston Villa after recovering from a muscle injury.
His return comes in time for the final home fixture of the 2022-23 campaign, but fellow forward Darwin Nunez has been ruled out with a toe issue.
The encounter with Unai Emery's Villa will see those in L4 also bid farewell to the departing James Milner, Alex Oxlade-Chamberlain and Naby Keita, with the latter having been absent since March due to injury.