The 18 year-old has seen his progress stall this season.
"We didn't expect this," agent Giuseppe Riso told Spazio Milan. "The club's situation is not helping, but when a player is good he is good.
"Bryan deserves more space even if he is rated highly by boss Massimiliano Allegri. We are talking about one of the best players in Europe from those born in 1995.
"I can't exclude a transfer," the representative added. "We'll talk with the club to understand what will be the best for everyone."
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