Terence Crawford beat Canelo Alvarez Saturday night in Las Vegas -- and while it was absolutely the biggest fight of his career -- was it the most difficult?!

"I wouldn't say it was the hardest fight of my career, but it was definitely the biggest fight of my career," Bud told Babcock on the TMZ Sports TV show (airs nightly on FS1 ) on Monday afternoon.

Crawford won the fight relatively comfortably on the scorecards (116-112, 115-113, 115-113) ... in front of 70,482 fans at Allegiant Stadium in Las Vegas, home of the Raiders, and tens of millions of fans on Netflix. Getty

With no guarantee he'll ever step foot in the ring again (more on that in a sec), and peers like Floyd Mayweather , Manny Pacquiao , Oleksandr Usyk , Andre Ward , Canelo, and

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