Sivasspor has signed 22-year-old Nigerian forward Jonathan Okoronkwo to a 1.5-year contract. Okoronkwo's last club was Hatayspor. The agreement was finalized with club president Burak Özçoban at the Vali Lütfullah Bilgin Sivasspor Facilities. The forward had joined Hatayspor in July 2024. During the 2025/2026 season in the 1.Lig, he made 1 appearance, scoring 1 goal and providing 2 assists. His current market value is listed as €700k by Transfermarkt.