sentences:  After Zou beat Brazilian boxer Natan Santana Coutinho by technical knockout to win back the WBO International flyweight title, and retained the title at Madison Square Garden in New York City against contender Jozsef Ajtai, he was ranked as the classified contender for the vacant WBO world title vacated by Juan Francisco Estrada, who decided to move up to super flyweight.On November 5, 2016, in a rematch from November 2014, Zou defeated Prasitsak Phaprom (39-1-2, 24 KOs) via a unanimous decision to win the vacant WBO flyweight title on the Vargas-Pacquiao undercard at the Thomas & Mack Center in Las Vegas.Zou consistently landed quick and effective combinations from the opening bell and used his footwork to avoid punches.