Leicester City have held talks with Mainz about a possible deal for forward Shinji Okazaki, according to Sky sources.
Man United midfielder Shinji Kagawa and Southampton defender Maya Yoshida have been included in Japan's World Cup squad.
Japan international Shinji Okazaki has left Stuttgart to join Bundesliga rivals Mainz.
Shinji Okazaki could leave Stuttgart this summer, according to the Bundesliga club's sporting director, Fredi Bobic.
Stuttgart have completed the signing of Japan star Shinji Okazaki, it was confirmed on Sunday.
Shinji Okazaki is poised to join Bundesliga club Stuttgart on Sunday following Japan's Asian Cup victory.
Bruno Labbadia has confirmed Stuttgart are closing in on a deal to sign Japan striker Shinji Okazaki.
Stuttgart have reportedly tabled a bid for Japan international Shinji Okazaki ahead of the transfer window.
Stuttgart are understood to be interested in prolific Japan striker Shinji Okazaki.
Shinji Okazaki has urged Japan to create history and claim a spot in the World Cup quarter-finals.
Makoto Hasebe believes Japan's players must look to make the most of the competition within their squad.
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