For the 2019–20 season, he was loaned to Foggia in Serie D. On 13 July 2021, he signed his first professional contract with Cagliari until 30 June 2023.
[1] He made his debut for the senior squad of Cagliari on 15 December 2021 in a Coppa Italia game against Cittadella.
[3] He made his Serie A debut for Cagliari on 23 January 2022 in a game against Fiorentina, a 1–1 home draw.
[4] On 1 September 2023, Kourfalidis joined Serie B club Feralpisalò on a season-long loan.
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