Last updated: 15 August 2026. Every transfer below was checked against the sources listed at the end of this article on that date.
Three confirmed transfers, three different leagues, all worth knowing about if you're following European football markets this season.
James Trafford โ Leeds United
Leeds completed a club-record deal for Manchester City goalkeeper James Trafford: an initial ยฃ40m fee that can rise to ยฃ45m, on a five-year contract confirmed in early August 2026. It makes him the most expensive British goalkeeper ever.
Kasper Hogh โ Celtic
Celtic completed a club-record ยฃ11m signing of Danish striker Kasper Hogh from Bodo/Glimt on 29 July 2026, on a four-year deal. Hogh scored 53 goals in 102 appearances for the Norwegian club.
Konstantinos Karetsas โ Borussia Dortmund
Dortmund agreed a deal worth a reported โฌ30m base fee (up to โฌ32m with add-ons) for Genk's 18-year-old midfielder, completed on 3 August 2026 โ the largest sale in Genk's history.
What This Means for Bettors
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Key Takeaways
- James Trafford's ยฃ40-45m move to Leeds United is a British goalkeeper transfer record.
- Kasper Hogh's ยฃ11m move to Celtic is a club record.
- Konstantinos Karetsas' โฌ30m move to Dortmund is Genk's biggest-ever sale.
FAQ
Q: Which of these three transfers is the biggest fee?
James Trafford's move to Leeds, at up to ยฃ45m.
Q: Are all three transfers fully confirmed?
Yes โ none of these are rumours; all three are completed deals.
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Sources
- Sports Mole โ Leeds confirm James Trafford transfer
- Sky Sports โ Celtic transfer news: Kasper Hogh completes club-record move from Bodo/Glimt
- Washington Post โ Dortmund signs Greece midfielder Konstantinos Karetsas from Genk
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