At UFC International Fight Week in Las Vegas, UFC 189 showcases two anticipated championship bouts featuring four global superstars. In the main event, the United Statesâ€™ Chad â€śMoneyâ€ť Mendes gets his shot at championship gold when he faces Irelandâ€™s Conor McGregor for the interim UFC featherweight title. McGregor has knocked out Diego Brandao, Dustin Poirier and Dennis Siver in succession, but he will matched by former All-American wrestler Mendes, who has ended five of his past six wins by knockout. In the co-main event, the United Statesâ€™ Robbie Lawler defends his UFC welterweight belt against Canadaâ€™s Rory MacDonald in a rematch of a 2013 bout won by Lawler. On July 11th, MacDonald gets his shot at redemption with more than ever on the line.