Shinji Kagawa has admitted he would like the idea of a return to Borussia Dortmund after failing to make a mark on the Premier League since moving to Manchester United.
Kagawa was signed by Sir Alex Ferguson last summer but in his first full season at United he failed to lock down a regular place in the side.
Dortrmund boss Jurgen Klopp spoke recently of how hard it was to let go of the 24 year old and insisted that Kagawa has not been used to the best of his ability at United so far.
He said at the end of last season: "Shinji Kagawa is one of the best players in the world and he now plays 20 minutes at Manchester United - on the left wing!
"My heart breaks. Really, I have tears in my eyes. Central midfield is Shinji's best role. He's an offensive midfielder with one of the best noses for goal I ever saw."
And as new Manchester United boss David Moyes settles into his role, Kagawa admits that that he would favour a move back to his old club if the opportunity arose.
"For me it was not a good season for United," Kagawa told Japanese TV show Foot x Brain. "If Dortmund agrees, I would like to one day return to this team."
How Moyes will deploy Kagawa in the line-up for United this season remains to be seen, but Bild reports that if the club were willing to gift him a return to the club where he made his name, he would cost at least €20m.
Kagawa scored six times in 26 appearances for United last season but will likely have a bigger part to play in the squad now that Paul Scholes has retired.
Next season will certainly be an interesting one for a United side who are without Ferguson in the dugout for the first time in 26 years, while for Dortmund the need for attacking players will be high on their wishlist as they aim to compete with a Bayern Munich squad that now includes their former star Mario Gotze.