# Jan Leszczyński transfer and subsequent knee injury

> Live situation record from CLSTR: https://clstr.news/situations/jan-leszczyski-transfer-to-borussia-mnchengladbach
> Updated: 2026-10-16T15:53:58.000Z. Sources: 6. Developments: 3.

Jan Leszczyński, a 19-year-old defender, transferred from Legia Warszawa to Borussia Mönchengladbach in a deal reportedly worth a base fee of approximately €3 million, with potential bonuses totaling around €4 million. Legia Warszawa sports director Fredi Bobić stated that while the club was reluctant to sell the homegrown talent, economic circumstances necessitated the move. Bobić also noted that discussions with coach Marek Papszun indicated the player might have struggled for playing time in the current Legia squad.

Following the transfer, Leszczyński made his first Bundesliga start for Borussia Mönchengladbach in a 3-4 loss against Mainz. Despite the team suffering its fourth consecutive defeat, the player played the full 90 minutes in a three-man defense and received positive individual reviews from media outlets such as BILD.

His momentum was recently interrupted when Leszczyński suffered a serious knee injury during a morning training session following an aerial duel. While sporting director Rouven Schröder and coach Alexander Blessin initially suggested a minor bruise, medical examinations confirmed a meniscus tear. According to BILD, the severity of the injury could sideline the defender for anywhere between two months and over six months, depending on whether surgery and a full reconstruction are required. Prior to the injury, Leszczyński had appeared in three Bundesliga matches and one German Cup match.

## Timeline

### 2026-10-16: Jan Leszczyński suffers serious knee injury at Borussia Mönchengladbach

Borussia Mönchengladbach defender Jan Leszczyński has suffered a meniscus tear during training, potentially sidelining the Polish talent for up to six months.

4 sources. https://clstr.news/cluster/jan-leszczyski-suffers-serious-knee-injury-at-borussia-mnchengladbach

### 2026-09-24: Legia Warszawa defender Jan Leszczyński transfers to Borussia Mönchengladbach

Legia Warszawa defender Jan Leszczyński has transferred to Borussia Mönchengladbach in a deal worth up to €4 million, driven by squad depth and club financial needs.

3 sources. https://clstr.news/cluster/legia-warszawa-defender-jan-leszczyski-transfers-to-borussia-mnchengladbach

### 2026-09-20: Jan Leszczyński makes Bundesliga starting debut for Borussia Mönchengladbach

Jan Leszczyński completed his first full 90-minute Bundesliga match for Borussia Mönchengladbach in a 3-4 defeat against Mainz.

2 sources. https://clstr.news/cluster/jan-leszczyski-makes-bundesliga-starting-debut-for-borussia-mnchengladbach

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Cite as: Jan Leszczyński transfer and subsequent knee injury. CLSTR, https://clstr.news/situations/jan-leszczyski-transfer-to-borussia-mnchengladbach