Nico Ali Walsh scored a knockdown so brutal the boxing referee waved the bout off immediately

• Nico Ali Walsh scored the fifth win of his career — and it was an almighty knockout.
• The 21-year-old is the grandson of Muhammad Ali and said he's bringing his grandpa back to life.

LAS VEGAS — Nico Ali Walsh made his ring-walk to the sounds of Gangsta's Paradise by Coolio.

The stage was set for him to open the main card section of the Top Rank event broadcast on ESPN from the MGM Grand Garden Arena in Las Vegas.

It is a battleground that many iconic fighters have excelled in, with Ali Walsh looking to forge his own name as Nico, rather than as the one that has followed him around since before his debut — as Muhammad Ali's grandson.

There were shades of curious boxing ability Saturday as Ali Walsh boxed circles around his opponent Alejandro Ibarra.

He looked fluid in his approach, varied his attack from head to body and from body to head, and seemed happy to relinquish jabbing accuracy for the sake of effective power punching.

Two minutes and 51 seconds into the very first round, Ali Walsh separated Ibarra from his senses with a one-two combination that saw a thunderous right hand rattle his opponent's skull.

Ibarra was down, out, and the referee Russell Mora seemed like he didn't really want to even bother counting. He gave a half-hearted attempt then called it off. It was over.

Ali Walsh celebrated the win while Ibarra took a moment to get to a corner so he could receive medical attention.

Watch it right here:

"Ali! Ali! Ali!" the Las Vegas crowd could be heard chanting, as his lightning-quick knockout appeared to satisfy the die-hards in attendance.

"This is a testament to all the work that I've put in and stuff like this happens when you put the work in," said Ali Walsh after his finish was officially announced.

"I'm bringing my grandpa back to life, and that's why mom gets so emotional because she's seeing her dad again and hearing her dad's name to me."

He continued: "I was setting him up with the right hand. I noticed his left hand was going down when he threw the jab.

"I was trying to counter it, and that's what I did. I wish the best for him and his team. He's a true warrior. But I just waited for that setup, and I saw it and I took advantage"

With victory, Ali Walsh advanced his pro boxing record to five wins (four knockouts), undefeated.

Ibarra, meanwhile, fell to seven wins (two knockouts) against two losses.

The main event of the evening was fought between two junior lightweight world champions Oscar Valdez and Shakur Stevenson.