Borussia Mönchengladbach are closing in on a major defensive reinforcement, with reports suggesting they are on the verge of securing the signature of SC Karlsruhe's promising left-back, David Herold.

According to Sky Germany, the two clubs have reached a full agreement, including the transfer fee, paving the way for the 23-year-old to make his move to the Bundesliga. Herold had already agreed to personal terms with the Foals back in late April, and now only a medical examination stands between him and a contract that would keep him at Borussia-Park until 2030.

Born in Mindelheim, Bavaria, Herold has made a name for himself in the 2. Bundesliga with his dynamic runs down the left flank. In 32 appearances for Karlsruhe, he has racked up an impressive seven assists, showcasing his ability to create chances from deep positions—a skill set that will be a welcome addition to Gladbach's attack.

The transfer fee is believed to be in the region of €3.5 to €4 million, a relatively modest investment for a player with Herold's potential and a clear upward trajectory. For Gladbach, this move signals a focus on building a solid foundation for the future, while for Herold, it represents a well-deserved step up to the top flight.