LAS VEGAS – Devin Haney assured Shakur Stevenson that their brief interaction Saturday night won’t be the last time they meet in a boxing ring.

Haney promised after his debatable defeat of Vasiliy Lomachenko that he and Stevenson eventually will fight. The undefeated, undisputed lightweight champion just isn’t sure if they’ll square off for his four 135-pound crowns.

The 24-year-old Haney explained in the immediate aftermath of his 12-round, unanimous-decision victory over Lomachenko that he and Stevenson could very well meet in a higher weight class.

Bill Haney, Devin’s father and trainer, interjected during their post-fight press conference when his son was asked about boxing the undefeated Stevenson.

“Bob ain’t said [Stevenson’s] name,” Bill Haney said in reference to promoter Bob Arum. “Bob ain’t said his name. My phone ain’t ringing.”

Devin Haney seconded his father’s sentiment, but he does believe he will face Stevenson at some point.

“Yeah, Bob hasn’t said his name at all,” Devin Haney said. “But nah, listen, of course, I’ve been very vocal about that me and Shakur are on a collision course. Whether it’s at 135, whether it’s at 140, whether it’s at 147, we definitely on a collision course. And we definitely gonna get it on when the time is right.”

Stevenson wants to challenge Haney (30-0, 15 KOs) for his IBF, WBA, WBC and WBO 135-pound crowns next. Haney might move up to the 140-pound division for his next bout, however, because he struggles mightily to squeeze down to the lightweight limit.

Haney told BoxingScene.com before he barely beat Lomachenko in their entertaining encounter that Stevenson and Gervonta Davis are the only two potential opponents that could keep him at lightweight for at least one more fight.

“You know, if I can’t get those fights next or it doesn’t make sense for it to be next, I’ll probably go to 140, test it out, see how I feel at the weight, at 140,” Haney said during his press conference Saturday night. “And then, when the time is right, then I’ll defend my belts at 135. We’ll just see, though. I’ve gotta go back and talk with the team and see what makes the most sense. That’s really all it boils down to.”

Stevenson (20-0, 10 KOs) is under contract with Arum’s Top Rank Inc., his career-long promoter. Haney’s three-fight co-promotional deal with Top Rank and DiBella Entertainment ended after his win against Lomachenko (17-3, 11 KOs).

Haney-Stevenson would be easier to put together if both boxers were with Top Rank, but Stevenson is still hopeful.

“Let’s make it happen,” Stevenson told ESPN’s Bernardo Osuna in the ring after Haney’s win. “I think that should happen next. I think Devin not on my level and Imma show it.”

The 25-year-old Stevenson picked Haney to beat Lomachenko, but he contended afterward that Lomachenko deserved to win their ESPN Pay-Per-View main event.

“Lomachenko should be undisputed champion,” Stevenson told Osuna. “He won. He won. He won that fight. He landed the cleaner punches. He landed the cleaner shots on Dev and he pushed the pace.”

The two-weight world champion from Newark, New Jersey exchanged words with Haney before one of his rivals left the ring Saturday night.

“I just said that I’m number one and let him know that I’m number one,” Haney recalled. “And that’s when he said, ‘For now.’ But right now, I’m number one.”

Stevenson stopped Shuichiro Yoshino in the sixth round of his lightweight debut April 8 at Prudential Center in Newark. The southpaw dropped Japan’s Yoshino (16-1, 12 KOs) once in the second round and again in the fourth round before their 12-round WBC elimination match was stopped in the sixth round.

Stevenson previously won world titles in the featherweight and junior lightweight divisions.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.