Answer
Al Ain is the only club that Hossam Hassan did not play for. He had a remarkable career, representing several prominent clubs, including Al Ahly, Zamalek, and Pyramids FC in Egypt, as well as Al Hilal in Saudi Arabia and Neuchâtel Xamax in Switzerland. However, his playing history does not include any stints with Al Ain, an Emirati club based in Abu Dhabi.