Overview
- FC Porto triggered the option in Kiwior’s loan to buy him outright for €17 million plus up to €5 million in add-ons, which Arsenal has now confirmed.
- Porto signed the Poland defender through June 2030 with a €70 million release clause that sets a buyout price for any future suitor.
- Arsenal retain a fixed €2 million from any future sale by Porto, and reports add Porto paid a €2 million loan fee last summer that could lift Arsenal’s total take to as much as €26 million.
- Kiwior sought regular minutes with Gabriel and William Saliba ahead of him at Arsenal, then played roughly 38 matches for Porto in 2025/26 and helped win the Primeira Liga.
- Arsenal disclosed the permanent switch in a routine loan-watch post rather than a standalone announcement after Porto publicly detailed the terms.