By Justin Barrasso Alexander Volkanovski will put his featherweight gold on the line in Saturday’s main event bout against The Korean Zombie. View the original article to see embedded media. UFC 273 on Saturday features two title bouts and a chance to see a rising star. Alexander Volkanovski defends his UFC featherweight gold against Chan Sung Jung, whose name has practically been replaced by his Korean Zombie nickname. Though that is the main event, the most highly anticipated bout of the evening is the Aljamain Sterling-Petr Yan rematch, which will determine the undisputed bantamweight champ…