The main focus of the transfer rumors are Nadiem Amiri, Paul Nebel, and Kaishu Sano. Amiri is a German World Cup participant and midfielder for FC Bayern Munich. Nebel, 23 years old, is an attacking midfielder who had strong performances at the World Cup. Sano, 25 years old, is a Japanese player and one of the main figures in Japan's national team. Nebel's contract expires in summer 2027, while Amiri and Sano's contracts are not yet finalized. Christian Heidel, Mainz 05’s Sports Director, emphasized that the club will not obstruct offers with a fair price. Nebel has already hinted at a transfer wish, and Amiri himself stated that he is happy in Mainz.