Vasyl Lomachenko is not yet worthy of legendary status despite his impressive victory over Luke Campbell, according to promoter Barry Hearn.
The Ukrainian added the WBC belt to his WBO and WBA titles as he overcame Campbell with a unanimous points win at the O2 Arena in London.
Lomachenko was awarded the victory by margins of 119-108 (twice) and 118-109, having sent his opponent down with a brutal onslaught of body shots in round 11.
However, Hearn declared he was not entirely convinced by Lomachenko, who himself rated his display as a a seven-out-of-10 performance.
"A great effort [from Campbell]. I didn't have the gap anywhere near as wide as [the judges], I had Campbell losing by about four, five rounds max, I thought he boxed brilliantly, perhaps didn't go for gold enough," Hearn told iFL TV, according to Omnisport.
"I was slightly disappointed with Lomachenko, to be honest. We've built him up as this superstar, but I can't put him in the same category as the superstars of yesteryear on that performance.
"A great fighter, obviously, but we can't mention him in the same breath as some of the all-time greats yet.
"I wasn't particularly impressed. I thought he had Campbell hurt a few times, he didn't finish the job. I thought he coasted a few rounds, I didn't see him look the dynamic fighter we've built ourselves up to believe he is.
"He's obviously very good, but we're talking about legendary status and that wasn't a legendary status type of fight."
After Saturday's bout, Lomachenko outlined his intention to complete the set of major titles at lightweight, though Richard Commey's expected fight with Teofimo Lopez is likely to mean the 31-year-old has to wait for his chance to do so.