From the moment Jermell Charlo dipped his toe in the pro games, the pugnacious Texas native was determined to become an undisputed world champion. After years of working his way up from the ground floor, his dream was finally realized.

On May 14th, the 32-year-old violently ended the title reign of Brian Castano via 10th-round stoppage. With all four belts wrapped around his waist, Charlo (35-1-1, 19 KOs) has continued to celebrate jovially. But while most of the boxing world views Charlo as the man to beat at 154-pounds, Brian “Bomac” McIntyre, head trainer of pound-for-pound star, Terence Crawford, is of the belief that Charlo would present fewer issues for his man as opposed to Errol Spence Jr.

“I think they fight the same,” said McIntyre during a previous interview with BoxingScene.com when asked who was the better fighter between Spence and Crawford. “It’s like probably fighting brothers but I would give it to Spence because of what he’s accomplished in the sport of boxing.”

As both Spence and Crawford continue in their attempts to hammer out an undisputed welterweight showdown, the switch-hitting Nebraska product has expressed a desire to move up in weight. More than anything, with Charlo backing Spence in his proposed showdown against Crawford, the 35-year-old has taken offense to his public support.

If the trajectory of Crawford’s career was solely in his hands, he would successfully defeat Spence, before moving up to 154-pounds to take on Charlo. Nevertheless, despite his world-renowned skills and long list of accolades, Charlo is convinced that one of his previous foes would make quick work of Crawford.

“(Erickson) Lubin will KO TC,” said Charlo on his social media account. “Move up to 154 we’ll see.”

Lubin, who was brutally stopped in the first round against Charlo during their 2017 matchup, has bounced back nicely, winning six consecutive bouts before losing his most recent showing against Sebastian Fundora.

Since aggregating every world title at 140-pounds, Crawford (38-0, 29 KOs) has dominated his welterweight competition, reeling off six stoppage victories at 147-pounds and nine in a row. Still, regardless of Crawford’s propensity for concussive knockouts, Charlo yawns as he sifts through what he considers an unimpressive resume.

“Who has he knocked out? Who has he fought?”