Kagawa is being linked with a summer move away.
But Cole remains a fan and says: "He is a quality player but he is not the only one who is finding it hard to get regular football. There are many top players in the squad and there is plenty of competition.
"But having seen Shinji play at Dortmund, I know for sure how good he is. He was the best player in Germany for two years. I believe he’ll come back with some good displays."
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