Errol Spence and Shawn Porter seek the finish when they meet in a welterweight unification bout.

Errol Spence and Shawn Porter both have their eyes on becoming a unified champion Saturday at the Staples Center. The pair of champions have promised to bring the fight at the sound of the opening bell, and earn the crown with a knockout.

Only that neither one of them are buying into remarks, as they engaged in another heated debate during the final press conference of their fight. The IBF welterweight champion hopes to see it for himself in the ring either way.

“It sounds good, but he gotta make that happen,” said Spence. “And like I said we train hard, very focused; and I’m ready for anything he could bring to the table. So if he says he can break me, he’s gonna break me, he’s gonna stop me, he’s gonna beat me up; keep that same energy come Saturday night.”

Porter, who holds the WBC title, is skeptical by looking at Spence’s last opponent; Mikey Garcia. The much smaller Garcia moved up two weight classes to challenge “The Truth” for his title in March. Spence went on to retain his title by unanimous decision in a dominant, one-sided fight.

As Garcia came over from lightweight, “Showtime” believes Spence should have been able to secure a knockout.

“The energy ain’t changed, I got the energy right now,” said Porter. “Where’s his energy at? And he said the same things. He wanna knock me out, and he going (to) hurt me; and so on and so forth. You didn’t knockout 135 Mikey Garcia, you ain’t knocking out 147-pound ‘Showtime’ Shawn Porter.”