Serbian centre-forward Petar Ratkov, aged 22, was acquired for 13 million euros. He has started in only two games for Lazio and could be made available for transfer if Sarri stays. Ratkov joined the club on 08/01/2026, and his contract runs until 30/06/2030. He has been capped 3 times for Serbia. His current market value, according to Transfermarkt, is €7.00m.