Player profile
Ayumu Seko
Defender · Le Havre AC
Ayumu Seko, the Osaka-born centre-back, is in his second Ligue 1 season at Le Havre after a free from Grasshopper in July 2025, and he started for Japan at the 2026 World Cup including the 1–1 with Sweden.
Career
Seko came through Cerezo Osaka (senior debut via the U-23 side in J3) and moved to Grasshopper Club Zürich on 18 January 2022, making 117 Swiss Super League appearances (German Wikipedia) before leaving on a free.
On 23 July 2025 he signed for Ligue 1 side Le Havre — ICI Normandie later noted he was the club's first Japanese player. Wikipedia's 2025–26 Le Havre line is 30 Ligue 1 appearances, 0 goals.
He debuted for Japan on 24 March 2023 (full 90 in a 1–1 with Uruguay) and was named in the 26-man 2026 World Cup squad on 15 May 2026.
How they play
A 1.85 m right-footed centre-back who has also been used as a defensive/central midfielder at Le Havre (FBref 2025–26 match logs show CM/DM as well as CB).
Where they are now
He is at Le Havre (FotMob contract to 30 June 2028; ESPN lists a Ligue 1 meeting with Monaco on 22–23 August 2026).
Bio
Club career
- Cerezo Osaka
International career
No international career on record yet.
Honours
No honours on record yet.
Defining moments
Le Havre from Grasshopper2025
On 23 July 2025 he signed for Ligue 1's Le Havre on a free after 117 Super League games for Grasshopper; he then started 29 of 30 Ligue 1 matches in 2025–26 according to FotMob.
World Cup start vs Sweden2026
ESPN records he started Japan's 1–1 World Cup draw with Sweden on 26 June 2026 after a substitute appearance in the 4–0 win over Tunisia.
Latest season stats (ESPN)
In our archive
We haven’t archived a match featuring this player yet — appearances appear here the moment we cover one.
Sources
- ESPN athlete profileJul 18, 2026
- WikidataJul 18, 2026
Read for this profile
- Wikipedia — Ayumu SekoAugust 22, 2026
- Wikipedia (de) — Ayumu SekoAugust 22, 2026
- FotMob — Ayumu SekoAugust 22, 2026
- ICI Normandie — third Japanese player at HACAugust 22, 2026
Profile written / last reviewed August 22, 2026.
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War of Soccer is not affiliated with FIFA, Le Havre AC, any federation or Ayumu Seko. This page compiles publicly available data (ESPN, Wikidata) descriptively, for identification and commentary only — not an endorsement by or of the player.