Porto sign Oskar Pietuszewski, 17, on contract to 2029 | OneFootball

Porto sign Oskar Pietuszewski, 17, on contract to 2029 | OneFootball

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·8 January 2026

Porto sign Oskar Pietuszewski, 17, on contract to 2029

Article image:Porto sign Oskar Pietuszewski, 17, on contract to 2029

Porto have signed 17-year-old winger Oskar Pietuszewski from Jagiellonia Bialystok, the club said in a statement on Wednesday. He has agreed a three-season contract to 5 January 2029 with a €60 million release clause.

He will wear the number 77 shirt and joins his new team-mates at the training camp in the Algarve.


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The transfer is permanent and covers his registration and 100% of his economic rights for a maximum €10 million. The total comprises a fixed fee and performance-related add-ons tied to specified objectives.

Jagiellonia will receive 10% of any future capital gain from a sale and will assume solidarity payments due to third parties. Porto will incur €400,000 in intermediary fees.

Pietuszewski came through Jagiellonia’s academy and debuted for the first team at 16 against Francesco Farioli’s Ajax in a Europa League match. This season the Poland U-21 international made 31 appearances, including 21 starts, scoring three goals with one assist.

Source: O Jogo

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