LAS VEGAS — Terence Crawford wouldn’t say no to rematch with Canelo Alvarez in the immediate aftermath of his career-defining win Saturday night.

Why would he?

Crawford has 36 minutes of irrefutable evidence to prove what he assured us all along — he is better than the Mexican superstar so many skeptics considered too big and too strong for him. If Alvarez wants a second shot at Crawford, and Riyadh Season is willing to bankroll it, Crawford will have to at least consider another massive purse for facing him again.

“I’m open to whatever,” Crawford said. “I'm a sit back, enjoy my victory with my team and I have my birthday in two weeks — since I’m old to everyone.”

Crawford will turn 38 on September 28. He definitely doesn’t fight like he is two years from 40 and certainly earned the right to do whatever he wants next.

We should hope, however, that Crawford and Alvarez don’t fight again after what we witnessed at Allegiant Stadium. As important as this enormous event was for boxing in the United States, there is simply no need for a rematch.

Crawford clearly won their fight for The Ring, IBF, WBA, WBC and WBO super middleweight titles. There wasn’t anything the least bit controversial about the outcome.

Judge Steve Weisfeld got it right by scoring eight rounds for Crawford, who won 116-112 on his card. Tim Cheatham and Max DeLuca were more generous to Alvarez, who historically has received more credit on some scorecards than he deserved in Las Vegas.

Cheatham and DeLuca scored it 115-113 apiece for Crawford, who boxed brilliantly on the most expansive platform possible.

Regardless, Crawford won — no ifs, ands or buts.

It was the type of decisive victory necessary if Crawford (42-0, 31 KOs) and Alvarez (63-3-2, 39 KOs) went 12 rounds because the last thing this sport needed was, with much more of the world watching than usual, to have the post-fight spotlight shine on the three men surrounding the ring rather than the two most important men in it.

Beyond Crawford’s convincing victory, their tactical battle wasn’t entertaining enough to warrant the financial and time investments in arranging a rematch. Based on what we learned during Crawford’s win, a rematch wouldn’t fascinate fight fans and casuals the way their first fight intrigued them.

We already know how the supposedly smaller man will handle Alvarez’s power. We’ve also seen how much sharper, smarter and athletic Crawford is than Alvarez, who was often a step behind and rarely caught him with flush punches.

It isn’t as if there were times when Alvarez buzzed or dropped Crawford and failed to finish him. It was a measured, superb performance from a generational great wise to avoid standing and trading with any regularity.

There’s little reason to believe a second fight would unfold differently.

The potential problem, of course, is that Canelo-Crawford was such a commercial success that a rematch might be difficult for every entity involved to ignore.

An announced crowd of 70,482 packed the Raiders’ home stadium for the first boxing event held there. Initial indications are that Netflix executives are pleased with how Canelo-Crawford performed for their streaming service as well.

Alvarez, as we well know, is a businessman above all else at this stage of his celebrated career.

A purse Turki Alalshikh publicly confirmed exceeded $100 million was what convinced Alvarez to fight Crawford once. Maybe another absurd sum will persuade Alvarez to push for a rematch.

Alvarez also might make this a moot point if he determines Crawford is a fighter he can’t beat. That’s ultimately what the four-division champ decided when Dmitry Bivol beat him three years ago in their light heavyweight title fight.

The former undisputed super middleweight champion was noncommittal regarding fighting Crawford again during his own post-fight press conference.

“We haven’t had a chance to talk about the next step and the future yet,” Alvarez said. “Of course, I just wanna enjoy my family.”

Like Crawford, boxing’s biggest star obviously still has the leverage to be selective about who he faces next.

Alvarez already said he’ll continue to fight. That makes perfect business sense since Riyadh Season still owes him a nine-figure total for the two fights remaining on the four-fight agreement they reached early in February.

A decisive defeat to Crawford should suppress anyone’s appetite to see Alvarez finally fight David Benavidez.

Alvarez always wanted to fight in England, though. Matching him against emerging British contender Hamzah Sheeraz in London remains a marketable option, as does a fight with Chris Eubank if he beats Conor Benn again in their own rematch November 15 at Tottenham Hotspur Stadium in London.

Those weren’t assignments Alvarez should’ve chosen if he were undisputed super middleweight champion. Losing to Crawford should afford him more freedom in picking opponents, even to his harshest critics, because it isn’t realistic to expect a 35-year-old to fight any of the most formidable super middleweights in his division if he doesn’t face Crawford again.

And it can’t be emphasized enough — there is simply no need for a rematch.