The thirty-four year-old WILDER remains on course to achieve his goal of unifying all four heavyweight belts despite being largely outboxed by ORTIZ before the explosive one-punch finish at the MGM Grand Hotel in Las Vegas.
Unbeaten in forty-three fights, WILDER showed why he is widely regarded as the most destructive puncher in the resurgent heavyweight division.
The “Bronze Bomber” recorded his tenth straight title defence to equal Muhammad Ali Who achieved the feat between 1974 and 1978.
WILDER’s win now sets up another money-spinning rematch with TYSON FURY scheduled for February.