The Lyon Football Club has announced the signing of a new French U21 international defender, as part of their efforts to improve their defensive system.

The player, who is yet to be named, joins the club on a three-year contract and will join up with the first team squad in January. The move comes after Lyon's defensive woes in recent seasons, which have seen them concede numerous goals against top-flight opposition.

The addition of the new defender is expected to bring a much-needed boost to Lyon's defensive line, which has struggled at times this season. The player is expected to play a key role in helping Lyon to defend better against opponents, while also providing cover for the team's other defenders.

The Lyon Football Club is hoping that the new signing will help to turn things around for the team, which has struggled to find consistency this season. With the new arrival on board, Lyon can now focus on building a strong defensive unit, which will be crucial if they hope to compete for honours next season.

Overall, the signing of the new defender by Lyon is a positive step forward for the team, and one that could see them return to form in the coming months. As the transfer window continues to open, it remains to be seen how many more signings the team will make, but the addition of the new defender is certainly a good start.