Vyacheslav Uzelkov beat Jaidon Codrington via a 6th round tko, claiming the vacant IBO International in the process in front of his home crowd in Kiev, Ukraine.
The fight was evenly split until the 6th when the home fighter stunned the american with a solid left hook, and a follow up barrage decked Codrington.
Codrington, who looked to have survived the knockdown with a clear head was deemed unfit to continue and the referee waved off the bout somewhat prematurely.
On the undercard Olympic Heavyweight champion Oleksandr Usyk made a successful start to the pro ranks with a fifth round ko over Felipe Romero.
Full ringside report to follow.