Key Takeaways:
- Jakub Kiwior has joined FC Porto from Arsenal on a one-season loan with an obligation to buy for approximately 27 million euros
- Arsenal finalised the transfer of Kiwior on the final day of the transfer window as part of the squad’s restructuring
- The Polish international made 38 appearances for Arsenal after joining from Spezia for 20 million pounds in January 2023
Transfer Details and Financials
Defender Jakub Kiwior has officially departed Arsenal to sign for Portuguese side FC Porto on a season-long loan agreement that includes a compulsory purchase clause set at around 27 million euros. The deal, which was concluded on the closing day of the transfer window, fits into Arsenal manager Mikel Arteta’s ongoing overhaul of his first-team squad.
Arsenal Career Summary
Kiwior joined the Gunners from Italian club Spezia in January 2023 for a transfer fee of 20 million pounds and featured in 38 matches across all competitions. Despite a number of promising outings—particularly last season—the 25-year-old was unable to establish himself as a consistent starter at the Emirates Stadium. The defender’s opportunities became even more restricted following the arrivals of Cristian Mosquera and Piero Hincapié, the latter signing for Arsenal from Bayer Leverkusen in a transfer confirmed just yesterday.
Our new number 4⃣
Welcome, Jakub 🇵🇱#SeguimosJuntos pic.twitter.com/pNbqkVNBqv
— FC Porto (@FCPorto) September 1, 2025
Kiwior’s Prospects at Porto
The switch to FC Porto presents Kiwior with the opportunity to play regular first-team football at a club competing in both the Primeira Liga and the UEFA Champions League. The structure of the deal guarantees that, after the conclusion of the 2025/2026 season, Porto will complete the permanent acquisition of the Polish international.
Official Statements and Player Reaction
Arsenal issued the following statement on their official website:
“Jakub Kiwior is joining Porto on loan for one season with an obligation for a permanent transfer. We thank Jakub for his contribution and wish him all the best in Portugal.”
Kiwior commented on his move: “I watched all FC Porto matches, I was impressed by the fans from what I saw on TV and I’m looking forward to feeling their support at the stadium. I’m here for us to fight together for FC Porto.”
Transfer Summary Table
| Player | Age | From | To | Transfer Type | Fee | Loan Duration | Obligation to Buy | Total Arsenal Appearances |
|---|---|---|---|---|---|---|---|---|
| Jakub Kiwior | 25 | Arsenal | FC Porto | Loan (with mandatory purchase) | 27 million euros (buyout clause) | 1 season | Yes (mandatory after loan) | 68 |
