Harold Moukoudi has joined Championship side Middlesbrough on loan for the rest of the season from Saint-Etienne.
The move is the 22-year-old's first adventure outside of France. He rose through to ranks at Le Havre and joined Saint-Etienne at the end of his contract last summer.
Moukoudi made his Ligue 1 debut against Dijon in August and he went on to play 16 games for Greens, including 11 league appearances.
The signing of the Cameroon defender is expected to strengthen Middlesbrough's backline as they are 17th in the Championship table with 35 points after 25 matches.