# Herba Guirassy transfer to Young Boys

> Live situation record from CLSTR: https://clstr.news/situations/herba-guirassy-transfer-to-young-boys
> Updated: 2026-08-31T14:48:00.000Z. Sources: 7. Developments: 2.

The transfer of French winger Herba Guirassy from FC Nantes initially involved a competition between several clubs. Birmingham City attempted to hijack a deal that Swiss side Young Boys were reportedly close to finalizing, following an initial offer of approximately three million euros from the Swiss club.

Ultimately, Young Boys secured the 20-year-old forward on a four-year contract lasting until 2030. The transfer fee for the French Under-21 international was approximately 5 million euros. Guirassy, who scored seven goals in 46 appearances for Nantes, is expected to replace departing player Joël Monteiro.

## Claims

- Herba Guirassy signed a four-year contract with Young Boys valid until summer 2030. (corroborated by 2 sources)
- Guirassy is 20 years old. (corroborated by 2 sources)
- Herba Guirassy joined the FC Nantes academy in 2018 at age 13. (single source)
- Guirassy played 40 matches and scored 6 goals for FC Nantes. (single source)
- The transfer fee for Guirassy was approximately 5 million euros. (single source)
- Young Boys loaned 17-year-old defender Olivier Mambwa to FC Thun. (single source)
- Olivier Mambwa's contract with Young Boys was extended until 2028. (single source)

## Timeline

### 2026-08-31: Young Boys sign Herba Guirassy from FC Nantes

Young Boys have signed 20-year-old French forward Herba Guirassy from FC Nantes on a four-year deal for approximately 5 million euros. Defender Olivier Mambwa has been loaned to FC Thun.

6 sources. https://clstr.news/cluster/young-boys-sign-herba-guirassy-from-fc-nantes

### 2026-08-26: Birmingham City enters race for Nantes winger Herba Guirassy

Birmingham City is attempting to hijack a transfer for Nantes winger Herba Guirassy, competing against Swiss club Young Boys for the 19-year-old talent.

2 sources. https://clstr.news/cluster/birmingham-city-enters-race-for-nantes-winger-herba-guirassy

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Cite as: Herba Guirassy transfer to Young Boys. CLSTR, https://clstr.news/situations/herba-guirassy-transfer-to-young-boys