The younger brother of fellow Belgium international and Manchester United striker Romelu Lukaku, 24-year-old Jordan is a left-back who is also comfortable as a wing-back.
After failing to make the grade at Anderlecht, Lukaku moved to Oostende before joining Lazio in a €4m deal in 2016. He has since gone on to make 46 Serie A appearances for the Biancocelesti, as well as earning seven full caps for Belgium.
However, his move to Tyneside comes with a big price tag attached to it. The loan itself cost Newcastle €2m in fees with a stipulated transfer fee of €22m should the move become permanent in the summer.
The Toon Army are becoming very used to loan spells at St James’ Park. Martin Dubravka joined on loan last winter before making a permanent move during summer 2018. Kenedy and Salomon Rondon are both currently on loan with the club but neither has an option to buy at the end of their time with the Magpies.
It comes as a relief to the long-suffering fans to see the club invest in the squad. Benitez threatened to walk away from Tyneside in the summer if there were no new signings this winter as they fight against relegation. The immediate threat of his departure is over but with Ashley in charge, a crisis is never far from the surface.