Lyon, the French football club based in Lyon, France, has signed a young French defender for their January transfer window. The player is expected to make a significant impact on the team and help them improve defensively.

The signing of this young defender is part of Lyon's ongoing efforts to strengthen their squad ahead of the upcoming season. With the departure of some key players, Lyon needed to bring in fresh talent to replace them. This new addition will be an important addition to the team's defense, which has struggled at times in recent seasons.

The young defender is a French U21 international, which means that he has already proven himself at the highest level of youth football in his country. His experience playing at the highest level of youth football will undoubtedly benefit him as he adapts to the demands of senior football.

Overall, the signing of this young defender by Lyon is a positive move forward for the club. It shows that they are committed to improving their defense and building a strong squad that can compete at the highest levels of football. As the January transfer window approaches, it will be interesting to see how Lyon continues to strengthen their squad and prepare for the upcoming season.