Arsenal manager Arsene Wenger was at the Japan versus Russia match in the Yokohama
Stadium, working for Japanese television.
He was later linked up with an embarrassed-looking Inamoto in a post-match interview.
And in Monday's edition of the Japanese language Sankei Sports newspaper
Wenger was cagey about Inamoto's future.
"It's not a good time to talk about whether he's leaving Arsenal or
staying," wrote Wenger, a former coach of J-League side Nagoya Grampus.
"I haven't decided yet but he's shown that in Europe he can play in any
"He has learned a lot in Europe and he knew he could be a winner when he
played in that first match against Belgium."
Inamoto, who speaks little English, looked uncomfortable
throughout his interview with Wenger.
And he said afterwards: "It was the
moment I dreaded most. I was very aware that somebody was watching me from
Inamota was hoping to emulate the success of his compatriot Hidetoshi Nakata who has
become a star in Serie A.
But he added: "I didn't play for a year but practising with excellent players has helped me
greatly improve my skills.
"I haven't shown my skills to the Japanese fans for a year so I am very glad
I have been able to do so here."
Inamoto has been linked to Dutch side Feyenoord, where his close friend Shinji Ono, also 22, has made a mark.
Italian clubs Atlanta and
Perugia are also said to be interested.