Ange Postecoglou appears on the brink of bringing Japanese international striker Daizen Maeda to Celtic, re-uniting the pair.
Maeda prospered under the Australian in the J-League at Yokohama F Marinos.
An agreement in principle to take the 24-year-old Marinos striker to the Glasgow club in January has reportedly been reached, with Celtic having the option of making the deal permanent in the summer.
Maeda, who was joint top-scorer in the J-League under Postecoglou last season, previously had a loan spell at Portuguese club Maritimo.
Speaking through an interpreter, he said on Thursday: “I felt that I still have a long way to go after playing against foreign players.
“If I don’t experience playing in a foreign league, I won’t be able to close the gap.
“So if I have a chance, I love to go to such a stage.”
Maeda would be the Parkhead club’s second signing from the J-League after the arrival of striker Kyogo Furuhashi from Vissel Kobe in the summer.
The Japan international has been a sensation at Celtic, scoring 16 goals in all competitions.
Celtic have also been linked with Reo Hatate and Yosuke Ideguchi from the Japanese top flight.