Joshua Greer Jr.
Joshua Kyle Greer Jr. (born June 13, 1994) is an American professional boxer who held the WBO-NABO bantamweight title in 2019. Professional career. Greer made his professional debut on September 26, 2015, scoring a second-round technical knockout (TKO) victory over Luis Guerrero at the Celebrity Theater in Phoenix, Arizona. Greer defeated Nikolai Potapov for the WBO-NABO bantamweight title. He defended his title against former world title challenger Antonio Nieves. In 2017, his knockout of James Gordon-Smith was a finalist for espn.com knockout of the year.