Jan Leszczyński
Jan Leszczyński, 19, from Poland ➤ Borussia Mönchengladbach, since 2026 ➤ Centre-Back ➤ Market value: €600k ➤ * 12/04/2007 in Warszawa, Poland

Info
Biographical card, current club and contract facts. Empty fields mean the source did not publish that value.
- Club
- Mönchengladbach
- League
- Bundesliga
- Position
- Defender - Centre-Back
- Shirt
- #5
- Age
- 19
- Date of birth
- 12/04/2007
- Height
- 1,91m
- Foot
- both
- Citizenship
- Poland
- Joined
- 01/07/2026
- Contract until
- 30/06/2030
- Market value
- €600k
- Career fees
- €3.00m
- Youth clubs
- RKS Ursus Warszawa
Statistics
Career totals from Transfermarkt: this season, then by competition and by club. Minutes and cards appear when the source recorded them.
This season
| Season | Competition | Apps | Min | G | A | YC | RC |
|---|---|---|---|---|---|---|---|
| 26/27 | Bundesliga | 1 | 13 | 0 | 0 | 0 | 0 |
| 26/27 | DFB-Pokal | 1 | 57 | 0 | 0 | 0 | 0 |
By competition
| Competition | Apps | G | A |
|---|---|---|---|
| Betclic 3 Liga - Group I | 22 | 2 | 2 |
| Youth League POL | 21 | 2 | 0 |
| UEFA Youth League | 4 | 0 | 0 |
| Ekstraklasa | 4 | 0 | 0 |
| Bundesliga | 1 | 0 | 0 |
| DFB-Pokal | 1 | 0 | 0 |
| STS Polish Cup | 1 | 0 | 0 |
| Conference League | 0 | 0 | 0 |
| Europa League Qualifying | 0 | 0 | 0 |
| UECL Qualifying | 0 | 0 | 0 |
| Superpuchar | 0 | 0 | 0 |
By club
| Club | Apps | G | A |
|---|---|---|---|
| Legia II | 23 | 2 | 2 |
| Legia U19 | 21 | 2 | 0 |
| Legia Warszawa | 4 | 0 | 0 |
| Legia Warsaw YL | 4 | 0 | 0 |
| Mönchengladbach | 2 | 0 | 0 |
Transfers
Recorded moves between clubs, with fee and market value on the day of the deal when the source has them.
| Date | Season | From | To | Fee | Market value |
|---|---|---|---|---|---|
| 01/07/2026 | 26/27 | Legia Warszawa | Mönchengladbach | €3.00m | €600k |
| 10/05/2024 | 23/24 | Legia II | Legia Warszawa | - | - |
| 01/01/2024 | 23/24 | Legia Yth. | Legia II | - | - |
National
Senior and youth national-team spells: caps, goals, shirt number and whether the player is still in the current pool.
| Team | Caps | Goals | Shirt | Debut | Status |
|---|---|---|---|---|---|
| Poland U18 | 2 | 1 | 21 | 2024-09-04 | Former international |
| Poland U19 | 4 | 0 | 3 | 2025-11-15 | Current international |
| Poland U17 | 6 | 0 | 21 | 2024-02-06 | Former international |
| Poland U16 | 2 | 0 | 21 | 2023-03-27 | Former international |
Market value
Current and peak Transfermarkt valuations, plus the history of changes by club and age. Rankings are relative to the current squad, league and position group.
- Current
- €600k
- Highest
- €600k · 04/06/2026
- Last change
- 04/06/2026
| Date | Age | Club | Value |
|---|---|---|---|
| 07/06/2024 | 17 | Legia Warszawa | €200k |
| 20/09/2024 | 17 | Legia Warszawa | €400k |
| 09/12/2024 | 17 | Legia Warszawa | €300k |
| 06/06/2025 | 18 | Legia Warszawa | €300k |
| 04/06/2026 | 19 | Legia Warszawa | €600k |
xG Statistics
Jan Leszczyński's xG Statistics block is an Understat shot model for the 2026 season. It does not replace goals and assists — it explains them. xG and xA ask whether the chances were good enough; xGChain and xGBuildup show how often the player was on the ball in moves that became shots. Use minutes as the denominator: a large xG in 80 minutes is a hot streak, the same xG over 1,200 minutes is a role. Figures are rounded to two decimals and stay empty when Understat has no match for this player.
| Season | League | Club | Apps | Min | G | xG | npxG | A | xA | Sh | KP | xGChain |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Bundesliga | Borussia M.Gladbach | 1 | 11 | 0 | 0 | 0 | 0 | 0.01 | 0 | 1 | 0.01 |
What the columns mean
Read this table as chance quality, not as a scoreboard. A player can outscore xG (finishing well) or lag behind it (missed sitters). Compare rows only when minutes are in the same range.
Apps· Appearances- Matches in which the player was used in this league season, including substitute minutes.
Min· Minutes- Total minutes on the pitch. Useful when comparing output: 1 goal in 90 minutes is not the same as 1 goal in 800.
G· Goals- Goals credited to the player in the Understat shot model for that season.
xG· Expected goals- The quality of shots the player took, expressed as the number of goals an average finisher would score from the same chances. A 0.30 xG shot is a chance that goes in about 3 times in 10.
npxG· Non-penalty xG- Expected goals with penalties removed. This is the cleaner read of open-play and set-piece finishing, because a penalty is usually ~0.76 xG by itself.
A· Assists- Goals that followed the player's last pass. Actual assists, not the model.
xA· Expected assists- The xG value of shots that came directly from the player's key passes. High xA with few assists usually means teammates missed good chances.
Sh· Shots- Total shots recorded by Understat, including blocked and off-target attempts.
KP· Key passes- Passes that led to a shot. This is the volume behind xA.
xGChain· xG chain- Team xG from possessions the player touched. It captures involvement in build-up, not only the shot or the last pass. A midfielder who starts attacks can rank high here without scoring.
xGBuildup· xG buildup- The same possession xG, but excluding the shot-taker and the assist. This is the purest 'how much did this player help create the chance before the final ball' number.
NPG· Non-penalty goals- Goals scored from open play or set pieces, excluding penalties.







