Ezzatollahi made headlines when he became the youngest player to appear in the Iranian Professional League and, at international level, he went on to be the youngest person to score for his country.
He ended up at Rostov in Russia via Atletico Madrid but, at 20, he has been keen for more game time.
“I have not officially received any offer from Hamburg so far. Hamburg is a great club and Iranian legend Mehdi Mahdavikia has played in the club," Ezzatollahi told the Tasnim News Agency.
"I think there is room to advance and my agent Mr. Amir Hashemi Moghaddam will take the offer into consideration if they give me a bid.”
“I’ve heard about Hamburg’s interest in the media but I leave it to my agent,” he added.