LAS VEGAS — Is there anything Terence Crawford can’t do? Probably not.

Is there anything he won’t do? Yes.

Crawford (42-0, 31 KOs) stepped up two weight classes to beat Canelo Alvarez (63-3-2, 39 KOs) by unanimous decision on Saturday night at Allegiant Stadium and became a five-division champion and three-time undisputed champion with the career-defining win.

During the immediate aftermath of the event, Crawford, who has held a WBA junior middleweight title since beating Israil Madrimov last year, said he won’t be returning to the division, or consider facing the fresh new face of the weight class who many believe mirrors him.

“No, [I won’t fight Jaron Ennis],” said Crawford when asked whether he would consider the matchup. “I ain't going down to 154.”

Ennis reigned as a unified welterweight champion after being a Crawford mandatory challenger and became a major participant during the buildup to Saturday's super fight. He served as a sophisticated sparring partner for the Mexican star.

Since a return to junior middleweight is out of the equation, would Crawford consider the unfathomable idea of moving up seven more pounds to make a run as a light heavyweight, and for a title in a sixth weight class?

“Naw, we ain't going up that much,” Crawford said with a laugh.

What Crawford is considering, however, is a middleweight run, and even retirement.

“Who knows, I might go down to 160,” said Crawford without shutting down the thought of calling it a career. “I’m going to sit down and talk with my team to see what’s next.”

Crawford could also be compelled to defend the 168-pound titles he just collected.

For now, Crawford can enjoy spoils of his landmark win as his 38th birthday approaches.

“For sure, this is definitely a signature win,” Crawford said. “Moving up two weight classes, being the B side, fighting a guy that’s been undefeated in the division, undisputed, going to take all of his titles, doing everything that I said I was going to do, of course this means a lot. I felt that everything was on the line.”