Title: Transfer Focus on Signing a Bundesliga Defender to Boost Atlético Madrid's Defensive Strength Ahead of January Window

In recent seasons, Atlético Madrid has struggled in the Bundesliga and has not been able to consistently secure defensive positions that can compete with top teams like Bayern Munich or Borussia Dortmund. This season, they have made some important signings but have struggled to find a defender who can step up to their level.

One of the key players for Atlético is a young German defender named Jérémy Manceau. He has been a regular starter this season and has proven himself to be one of the best defenders in Europe. However, he is not the only player who could help improve Atlético's defense.

One potential solution is to sign a strong, experienced defender who can provide depth to the team. One option would be to target a defender from another club in Germany or Europe, such as Ajax or Real Madrid.

Another option is to look at signing a more established defender who can provide stability and continuity in the squad. This person should have experience playing at a higher level than Jérémy Manceau, which would give them confidence and help them develop further.

Ultimately, the key to improving Atlético's defensive strength will depend on how quickly they can identify and sign a suitable replacement for Jérémy Manceau. With a few key considerations, they may be able to significantly boost their defensive capabilities ahead of the January window and make a significant impact in the Bundesliga.