During the difficult early weeks of David Moyes' tenure, the Scot's use of Kagawa has been criticised.
"I played behind the main striker at Dortmund, but I usually play on the left with Japan," the Japan international told United Review.
"I should be flexible enough to play in a number of roles, so I am a more attractive player to the team and can contribute even more.
"Every day I am learning how to trouble my opponents on the left, how best to cause them problems with my movement. But I would still like to be capable of taking up more positions."
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