Introduction: Cengiz Ünder is one of the most influential players in Marseille's history, and his defensive contribution has been crucial throughout his career. In this article, we will explore some key aspects of Cengiz Ünder's defensive work at Marseille.

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1. Early Career: Cengiz Ünder was born in Turkey but moved to France at a young age. He started his career with Marseille before moving to Paris for a short period. During his time at Marseille, he played a significant role in helping the team win several league titles and European Cups.

2. Experience: After retiring from professional football, Cengiz Ünder continued to be involved in coaching and management roles. He was appointed as the manager of French club Stade Toulon in 2015 and led them to the top division once again. Since then, he has also worked as a coach at Ligue 1 side AS Saint-Étienne and FC Metz.

3. Defensive Contributions: Cengiz Ünder has consistently been a key player on the defensive side of the pitch for Marseille. His ability to play both as a centre-back and as a left back has allowed him to contribute significantly to the team's success over the years. He has helped Marseille to secure multiple league titles and have achieved success in Europe, including winning the UEFA Champions League in 2014.

Conclusion: Cengiz Ünder's defensive contributions have been instrumental in helping Marseille achieve its current success. His experience and skill set make him a valuable asset to any team that employs him. Despite his recent retirement, he continues to be a respected figure in the world of football and remains a key player for Marseille and other clubs around the world.