Canelo Alvarez and Terence Crawford never touched each other when they stood face to face Friday night at T-Mobile Arena in Las Vegas.

Alvarez shoved Crawford the last time they posed for photos following a press conference Sunday afternoon at the Javits Center in New York. The undisputed super middleweight champion claimed during the third and final stop on the promotional tour for their fight September 13 that he only pushed Crawford because Crawford aggressively walked forward as promoter Dan White and others tried to separate them.

Mexico's Alvarez also alleged that Turki Alalshikh, the head of Riyadh Season, instructed Crawford to get physical with Alvarez to attract attention to their second of three press conferences over an eight-day span.

"He tried to walk me back and [that] just was my reaction," Alvarez said while seated on stage Friday. "That's it. You know, you know what kind of fighter I am. I always try to respect my opponents. And I think he [didn’t do] it because he really wanted to do [it]. I think Turki Alalshikh told him, 'You need to do something.'

"And he did. He did. And now, before I respect his word because he say, 'Oh, I'm not gonna let somebody tell me what I need to do.' And he did … But you know me. Just I respect everybody, but if you [expletive] with me, it's gonna be different."

An incredulous Crawford denied Alalshikh asked him to do anything when he and Alvarez faced off for the second time in less than 48 hours. Their promotional tour began a week ago – June 20 in Riyadh, Saudi Arabia, where the fellow four-division champions respectfully dealt with each other in what amounted to an uneventful launch to this promotion.

"Turki didn't ask me to do nothing," Crawford said. "I didn't touch him. Listen, first and foremost, somebody was in the room saying that I was scared of him. So, I stepped to him and showed him who was the boss of this fight. I ain't scared of [expletive].”

Alvarez interrupted and identified Crawford's “uncle” as the man who suggested Crawford was scared of a fighter he'll challenge for The Ring, IBF, WBA, WBC and WBO super middleweight titles at Allegiant Stadium in Las Vegas.

"I ain’t scared of [expletive] and you gonna find that out," Crawford said. "As you seen, the last press conference, when I walked you down, when you was supposed to be the bigger man."

Netflix will stream their 12-round, 168-pound championship class worldwide to more than 300 million subscribers.

Guadalajara's Alvarez (63-2-2, 39 KOs) is a slight favorite to defeat Crawford (41-0, 31 KOs), a former undisputed junior welterweight and welterweight champion from Omaha, Nebraska. Crawford, who will turn 38 two weeks after he challenges Alvarez, will end a 13-month layoff the night he'll attempt to become boxing's first three-division undisputed champion.