According to Fabrizio Romano, Schalke 04 has also approached Cagliari for the transfer of Antoine Makoumbou. The 26-year-old midfielder, currently with Cagliari since 2022, is attracting interest from multiple clubs. Alongside Schalke 04, Turkish side Samsunspor and Greek club Panathinaikos have also made inquiries for the Congolese player. Romano noted that these clubs are keen on securing Makoumbou's services, highlighting the growing interest in the talented midfielder. Transfermarkt currently estimates his market worth at 3.50 million euros.