With a new boss at the Old Trafford helm, the 25 year-old feels refreshed and has vowed to start the new campaign on a high note.
"I feel incredibly excited," Kagawa told AFP in Tokyo.
"It's a new start and I feel re-energised. It's up to the players to get the results we need. I have a strong desire to do well.
"I'll look more closely at my game and accept the challenge filled with passion."
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