Vasyl Lomachenko, left, lands a punch to the head of Roman ‘Rocky’ Martinez during the fourth round of their super featherweight title fight in June at Madison Square Garden. Lomachenko won via 5th-round TKO/Associated Press photo by Frank Franklin II

As good as Vasyl Lomachenko is, as much as his promoter Bob Arum touts him as the greatest he’s seen since a young Muhammad Ali, Lomachenko knows he is in for a real nasty time of it Saturday when he defends his super featherweight belt against hard-hitting Nicholas Walters. The two will square off at the Cosmopolitan in Las Vegas (on HBO).

“This is a very important bout for me because many boxing experts and many people in boxing rank Walters as the highest-rated fighter in our division,” Lomachenko said. “He is a very hard puncher and a very good boxer and for me it’s a very important thing to me to fight the best and it’s very important for me because everyone says he is a very good fighter.”

As for the Ali comparison, here’s what Arum told reporters during a conference call: “I would like to say this; that Vasyl Lomachenko is technically the best fighter that I have seen since the early Muhammad Ali. There is nobody that I have seen, and there have been a lot of great technical fighters that I have seen – Alexis Arguello was one, Floyd Mayweather certainly, Manny Pacquiao – but there has been nobody with the skills that Vasyl Lomachenko has.”

Lomachenko, of Ukraine, is 6-1 with four knockouts. The two-time Olympic gold-medal winner has also held a major world title in the featherweight division.

Walters, of Jamaica, is 26-0-1 with 21 knockouts.