Ukranian world champions Vasyl Lomachenko and Oleksandr Usyk retained their belts on Saturday night.
Lomachenko's status as one of the world's best pound-for-pound talents was enhanced when opponent Jason Sosa failed to emerge for the 10th round of their WBO super-featherweight title fight.
The former amateur prodigy improved to 8-1 as a pro, including world titles in two divisions, as his second consecutive opponent withdrew in the corner. Nicholas Walters previously lost to Lomachenko (pictured, right) in the same manner.
On the undercard, 2012 Olympic gold medal winner Uysk remained unbeaten in 12 fights as a professional with a unanimous decision victory against Michael Hunter Jr in defence of the WBO cruiserweight title.