Muhammad Ali's grandson Nico Ali Walsh produced arguably the best performance of his career to date by knocking out Reyes Sanchez in two rounds on Saturday night at the Pechanga Arena in San Diego, California.

Walsh stopped Sanchez with a peach of a left hook in the second round as he extended his unbeaten professional boxing record to 6-0 since making his debut last August.

It was actually the second time they have fought having previously shared the ring together in December.

Back then, Walsh was declared the winner by majority decision, but he wasn't wholly satisfied with his performance overall.

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The pair's rematch took place on the undercard of Emanuel Navarette's world featherweight title defence against Eduardo Baez.

Coincidentally it was held at the same venue where Walsh's grandfather had his jaw broken by Ken Norton in their 1973 classic.

The American came out strong from the opening bell and snapped Sanchez's head back with an accurate jab to take control of the first round.

WATCH: Muhammad Ali's grandson Nico Ali Walsh won by second-round KO

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The second round saw Walsh walk down his opponent and back him up against the ropes before landing a right-left combination to the body, sending Sanchez down on one knee.

There was no getting up for Sanchez, 30, and the fight was waved off with less than 30 seconds left in the second round.

It means that he has now stopped every single opponent he has faced as a professional as a result.

Welterweight Walsh, 22, said: "It was so gratifying, Timothy Bradley called the shot in the fighter meetings.

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"It was a beautiful shot, it was the shot I was looking for and dreaming about.

"It happened because I worked so hard for it.

"I feel amazing. This is a special win because of course it was a rematch. It was everything I've been working towards, my hard work has shown in the ring I want everyone to see that it's a new me and I think you saw that.

"I've got to think my coaches and Bob Arum, these are geniuses behind every single fight."