Brown snubbed the chance to talk to Reading after Hibernian accepted an offer from the Royals, and instead on Wednesday agreed to a £4.4million summer switch to Celtic, and assistant manager Kevin Dillon believes the 21-year-old was out of order for belittling the Berkshire club.
Dillon told the Daily Express: "Who does he think he is? His comments are outrageous. I rarely get annoyed by things, but this has upset me. He wants to get his facts right. It reflects badly on everyone."
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