Wolves have joined the race for Mainz's defensive utility Jean-Philippe Gbamin.
However, BILD says Wolves and AS Monaco are the two clubs most serious about doing business with Mainz. Both clubs are prepared to discuss terms of around €30-40m.
Mainz sporting director Rouven Schroder has also stated: "There is clearly movement and momentum in it. In part, the numbers are already exchanged. But it's not written down in writing that we could do it."