# Leon Flach

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**Leon Maximilian Flach** (born February 28, 2001) is an American professional [soccer](/source/Association_football) player who plays as a [midfielder](/source/Midfielder) or [left-back](/source/Defender_(association_football)) for Polish club [Jagiellonia Białystok](/source/Jagiellonia_Bia%C5%82ystok).[3][4][5]

## Club career

### FC St. Pauli

Flach made his professional debut for [FC St. Pauli](/source/FC_St._Pauli) in the [2. Bundesliga](/source/2._Bundesliga) on September 27, 2020, coming on as a substitute in the 85th minute for [Jannes Wieckhoff](/source/Jannes_Wieckhoff) against [1. FC Heidenheim](/source/1._FC_Heidenheim), which finished as a 4–2 home win.[6]

Flach scored his first professional goal for FC St. Pauli on January 3, 2021, scoring in the 82nd minute against [Greuther Fürth](/source/SpVgg_Greuther_F%C3%BCrth) in a 2–1 loss.[7]

### Philadelphia Union

In March 2021, Flach signed a two-year contract with [Philadelphia Union](/source/Philadelphia_Union) competing in [Major League Soccer](/source/Major_League_Soccer).[8] Flach's debut with the Union was starting in the club's first [CONCACAF Champions League](/source/CONCACAF_Champions_League) match, defeating [Deportivo Saprissa](/source/Deportivo_Saprissa) 1–0.[9] Flach scored his first goal for the Union on October 3 against reigning MLS Champions, [Columbus Crew](/source/Columbus_Crew_SC) in a 3–0 win.[10] His performances throughout the 2021 season made Flach a regular starter in the Union midfield and was recognized as being named among the MLS's 22 under 22.[11]

### Jagiellonia Białystok

On January 15, 2025, free agent Flach joined Polish defending champions and [UEFA Conference League](/source/UEFA_Conference_League) participants [Jagiellonia Białystok](/source/Jagiellonia_Bia%C5%82ystok) on a two-and-a-half-year deal, with an option for another year.[12]

## Personal life

Flach was born in Texas to German parents while his father was working in Houston before returning to Hamburg as a child. He has represented Germany and the United States at youth level. Flach is a fan of the [Houston Texans](/source/Houston_Texans).[3]

## Career statistics

Appearances and goals by club, season and competition Club Season League National cup[a] Continental Other Total Division Apps Goals Apps Goals Apps Goals Apps Goals Apps Goals FC St. Pauli II 2020–21 Regionalliga Nord 3 1 — — — 3 1 FC St. Pauli 2020–21 2. Bundesliga 9 1 — — — 9 1 Philadelphia Union 2021 MLS 34 1 — 6[b] 0 3[c] 0 43 1 2022 MLS 34 0 1 0 — 3[c] 1 38 1 2023 MLS 25 1 1 0 4[b] 0 5[d] 0 35 1 2024 MLS 23 0 0 0 — 6[e] 0 29 0 Total 116 2 2 0 10 0 17 1 145 3 Jagiellonia Białystok 2024–25 Ekstraklasa 13 0 1 0 5[f] 0 1[g] 0 20 0 2025–26 Ekstraklasa 20 1 2 0 13[f] 0 — 35 1 Total 33 1 3 0 18 0 1 0 55 1 Career total 161 5 5 0 28 0 18 1 212 6

1. Includes [U.S. Open Cup](/source/U.S._Open_Cup), [Polish Cup](/source/Polish_Cup)

1. Appearances in [CONCACAF Champions League](/source/CONCACAF_Champions_League)

1. Appearances in [MLS Cup Playoffs](/source/MLS_Cup_Playoffs)

1. Three appearances in [Leagues Cup](/source/Leagues_Cup), two appearances in MLS Cup Playoffs

1. Appearances in Leagues Cup

1. Appearances in [UEFA Conference League](/source/UEFA_Conference_League)

1. Appearance in [Polish Super Cup](/source/Polish_Super_Cup)

## Honors

**Philadelphia Union**

- [MLS Cup](/source/MLS_Cup) runner-up: [2022](/source/MLS_Cup_2022)[13]

**Jagiellonia Białystok**

- [Polish Super Cup](/source/Polish_Super_Cup): [2024](/source/2024_Polish_Super_Cup)[14]

## References

1. ["National team roster, 2021 CONCACAF Gold Cup: USA"](https://mcusercontent.com/78d3589fb61466b549ff752e5/files/41732c7a-5319-fd6c-8648-65e8e1b78706/Group_B.pdf). *[CONCACAF](/source/CONCACAF)*. June 18, 2021. p. 1. Retrieved June 18, 2021.

1. ["Leon Flach"](https://www.philadelphiaunion.com/players/leon-flach/). Philadelphia Union. Retrieved 23 August 2022.

1. ["ASN: Flach seeks roles with the U.S. U-20s & St. Pauli first team in 2020"](http://americansoccernow.com/articles/flach-seeks-roles-with-the-u-s-u-20s/-st-pauli-first-team-in-2020). *americansoccernow.com*. Retrieved 2021-01-03.

1. ["Leon Flach | Philadelphia Union player profile"](https://www.philadelphiaunion.com/players/leon-flach). *philadelphiaunion.com*. 31 March 2021. Retrieved 31 March 2021.

1. ["Germany » 2. Bundesliga 2020/2021 » 2. Round » FC St. Pauli – 1. FC Heidenheim 1846 4:2"](https://www.worldfootball.net/match-report/ma9114466/lineup/). *WorldFootball.net*. September 27, 2020. Retrieved September 27, 2020.

1. ["Nur geschnuppert: St. Pauli-Trainer Schultz über Tor-Debüt von Flach"](https://stpauli24.mopo.de/2021/01/03/nur-geschnuppert-st-pauli-trainer-schultz-ueber-tor-debuet-von-flach.html) (in German). *Morgenpost*. 3 January 2021. Retrieved 8 January 2021.

1. ["Philadelphia Union Sign Midfielder Leon Flach"](https://www.philadelphiaunion.com/post/2021/03/31/philadelphia-union-sign-midfielder-leon-flach). *philadelphiaunion.com*. 31 March 2021. Retrieved 31 March 2021.

1. Jonathan Tannenwald (8 April 2021). ["Leon Flach fits in right away during Union win in debut on Concacaf Champions League stage"](https://www.inquirer.com/soccer/leon-flach-concacaf-champions-league-saprissa-20210408.html). The Philadelphia Inquirer. Retrieved 20 April 2021.

1. Jonathan Tannenwald (3 October 2021). ["Union rout Columbus Crew, 3-0, headlined by Jack Elliott's free kick goal: Observations and analysis"](https://www.inquirer.com/soccer/jack-elliott-philadelphia-union-vs-columbus-crew-20211003.html). The Philadelphia Inquirer. Retrieved 13 October 2021.

1. ["2021 22 Under 22 presented by BODYARMOR"](https://www.mlssoccer.com/news/2021-22-under-22-presented-by-bodyarmor). *MLSsoccer.com*. 12 October 2021. Retrieved 13 October 2021.

1. Bońkowski, Robert (15 January 2025). ["Grał przeciwko Messiemu. Leon Flach będzie nową gwiazdą PKO BP Ekstraklasy?"](https://sport.tvp.pl/84530646/gral-przeciwko-messiemu-leon-flach-z-jagiellonii-bialystok-bedzie-nowa-gwiazda-pko-bp-ekstraklasy) (in Polish). *sport.tvp.pl*. Retrieved 15 January 2025.

1. Sigal, Jonathan (November 5, 2022). ["Hollywood ending! LAFC win legendary MLS Cup 2022 over Philadelphia Union"](https://www.mlssoccer.com/news/hollywood-ending-lafc-win-legendary-mls-cup-2022-over-philadelphia-union). *[Major League Soccer](/source/Major_League_Soccer)*. Retrieved April 27, 2023.

1. Włosek, Mateusz (April 2, 2025). ["Superpuchar Polski dla Jagiellonii Białystok. Antyrekord na Stadionie Narodowym"](https://sport.tvp.pl/85955281/superpuchar-polski-dla-jagielloni-bialystok-antyrekord-na-stadionie-narodowym) (in Polish). *sport.tvp.pl*. Retrieved April 4, 2025.

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Adapted from the Wikipedia article [Leon Flach](https://en.wikipedia.org/wiki/Leon_Flach) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Leon_Flach?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.