The 24-year-old Japan internationalist is widely expected to move to Celtic and join up with manager Ange Postecoglou, who coached him before his Parkhead switch in the summer.
Maeda was the top goalscorer in Japan’s premier division in 2021 and is part of the national team set-up.
And according to reports in Japan, Yokohama are in discussions with fellow J-League outfit Sendai over the transfer of forward Takuma Nishimura, who would be a direct replacement for Maeda.
That deal is expected to be completed on January 10, with Celtic wanting Maeda in Glasgow by January 22, after the cinch Premiership’s winter shutdown.
Celtic also hope to complete deals for two other Japanese players in Kawaski Frontale wing-back Reo Hatate and box-to-box midfielder Yosuke Ideguchi, who plays for Gamba Osaka.