In their infamous rematch, Duran’s air of invincibility evaporated when he turned his back and said ‘no mas’.
- Oliver McCall vs Lennox Lewis
McCall refused to engage and began to cry before the fight was ended in the fifth. It transpired that McCall was suffering with a mental illness.
- Andrew Golota vs Mike Tyson
After being dropped and dominated, Golota retired from the fight at the end of the second round, having suffered numerous injuries.
- Victor Ortiz vs Marcos Maidana
In a see-saw war, Ortiz quickly found out he may have bitten off more than he could chew and admitted to quitting the fight afterward.
- Nicholas Walters vs Vasyl Lomachenko
After seven dominant rounds from Lomachenko, Walters realised his chances of victory were minute and decided to pack it in.
- Vitali Klitschko vs Chris Byrd
Ahead on all three cards, Klitschko had no choice but to quit on his stool due to a nasty shoulder injury.
- Michael Gomez vs Peter McDonagh
Gomez took a series of unanswered punches in the fifth, went down, then left the ring while the referee was still counting.
- Luis Collazo vs Keith Thurman
Having worked his way back into the fight, Collazo then elected to not continue after the seventh.
- Dwight Muhammad Qawi vs George Foreman
Returning former champion Foreman outmuscled Qawi and forced him to quit on his feet in the seventh.
- Lucas Matthysse vs Viktor Postol
The fearsome Matthysse was broken down and dropped in the 10th, though he elected to stay on one knee for the entire 10 count.