Manchester City chairman says the other teams are just jealous

City dominated at home this season, winning the domestic treble -- the first English men's team to do so. However, success on the pitch has been marred by controversy off it -- including a UEFA investigation into allegations of unfair financial practices. "With success, there is a certain level of jealousy, envy, whatever you call it. That's part of the game," Mubarak said in his season review with the club website, denying any financial wrongdoing.