Achraf Lazaar back in first-team fold at Newcastle
The defender, frozen out by Benitez last year, was told to find a new club in the summer.
However, a move to Genoa broke down in August and Lazaar returned to train at the club's Academy.
Lazaar has made three appearances for the club's Under-23 side.
Benitez said last month that it was "positive" that Lazaar, signed from Palermo two years ago, was getting minutes on the pitch.
United's called up Lazaar and a number of his Under-23 team-mates to training this week.
Lazaar was pictured in a training gallery published by the club.
Benitez, looking to make up the numbers during the international break, also called up midfielder Matty Longstaff, who scored in Tuesday night's 3-2 Checkatrade Trophy win over Grimsby Town.
Goalkeeper Nathan Harker and defender Owen Bailey were also involved in the session.