Jurgen Klopp’s side have won plenty of admirers for their pressing, high-tempo game and Japanese star Shinji, who played for them for two seasons between 2010 and 2012, hopes they'll win the European Cup for a second time this weekend.
"I want to play better in the Champions League next season because I’ve been inspired to see Dortmund make it to the final," Kagawa told ManUtd.jp recently. "I was encouraged to know there is a chance for me to be on the big stage with United.
"I’ve followed how they are doing and have kept in touch with some of the players. Each time they progressed in the Champions League, I sent them a text to say congratulations."
Bayern won the league this season with six games to spare, a record in Germany’s top flight, but have failed to win any of their last six league encounters with Dortmund.
"Bayern will find it hard against Dortmund as they haven’t beaten them in the league for three seasons," added Kagawa, who will be watching on TV while on international duty.
"Dortmund will play hard without being over-confident. I expect it will be an exciting match and I hope Dortmund will be European champions."
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