Bundesliga club Mainz have released a statement announcing that a deal has been agreed 'in principle' with Newcastle United for Japanese international Yoshinori Muto, for a fee reportedly around the £9.5m.
Though Newcastle are yet to officially confirm Muto's arrival, a deal is believe to have been agreed in principle, with a few formalities - including the acquisition of a work permit - to be ironed out.
Muto will become Newcastle's fifth signing of the summer, following the arrivals of Martin Dubravka, Kenedy, Ki Sung-yueng and most recently Fabian Schar.
In the statement, Director of Mainz 05 Rouven Schröder said: "We have had good and constructive discussions with Newcastle United and we have come to an agreement in principle, there are still some key details to clarify, but we are confident that we will soon reach a final transfer decision.