Shinji Kagawa insists he will turn his focus to his potential move to Manchester United only after this month's World Cup qualifiers with Japan.
United announced on Tuesday they have agreed terms with Borussia Dortmund to sign the highly-rated midfielder, subject to a medical and work permit.
The deal is thought to be worth an initial £12million, which could rise to £17m with add-ons.
The 23-year-old has stressed he is yet to put pen to paper on a contract with the Red Devils and is focused on performing with his country.
"The transfer is not complete for the time being. I have yet to sign the contract," Kagawa told Kyodo News after training with his national team on Tuesday.
"The team and I are fully focused on the next two games.
"It's better if we talk about (the transfer) after those matches. I want to focus on playing well over the next few weeks."
Japan face Jordan in Saitama this Friday, before travelling to Brisbane for a June 12th re-match of last year's Asian Cup final with Australia.
Kagawa will feature in the qualifiers on the back of a successful season with Dortmund, during which he helped the Bundesliga club to a domestic league and cup double.