"Joshua has a lot of weaknesses. Joshua doesn't have much of a jaw, I understand that he is really robotic," the 30-year-old told British media.
"He has a little speed, a little power, it's the heavyweight game that is what we do.
"He's (Joshua) very raw for having 16 fights. I have definitely had tougher fights than Joshua."
With a record of 17-0, Breazeale is undefeated as a professional and appeared at the 2012 London Olympics, where he lost in the first round.
"Everything from coaching to arrival in London didn't have a lot of education put into it," he added. "You had no idea who was in the competition, no idea who you were fighting."
(Reporting by Nivedita Shankar in Bengaluru; editing by Sudipto Ganguly)
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