Kiwior has established himself as a vital component of the defence this season, racking up 38 appearances and playing 3,022 minutes across all competitions. He contributed two assists and played a pivotal role in helping the side secure the Liga Portugal title. To protect their investment, Porto have locked him down on a massive contract. The club announced that they signed the Poland international defender to a "contract valid until June 2030, with a release clause set at €70 million (£60m)."