Cormier is trying to become the second fighter in UFC history to become a two-division champion, while Miocic is seeking to extend his record for most consecutive heavyweight title defenses to four.
Brock Lesnar will fight the victor of tonight's main event in November at Madison Square Garden for the UFC heavyweight championship, multiple sources confirm. Miocic weighed in at 242.5; Cormier weighed in at 246.More news: Croatia defeats Russian Federation on penalties to advance to semis
"Push me now, (and) you're going to sleep later", Cormier yelled at Lesnar.
While the event has taken a big hit with Max Holloway's removal from his title fight with Brian Ortega after showing concussion-like symptoms during fight week, the card is still stacked with star power.
Cormier has spent the past five years fighting at the light heavyweight limit of 205 pounds.
"Not having to cut any weight is very pleasant", Cormier said with a laugh. After reigning for more than two years atop a notoriously unstable division, Miocic didn't hesitate to risk his belt in a career-defining bout. Lesnar must be in the pool again for six months before he is allowed to compete again with UFC, so if he has indeed re-entered that testing pool again, his return to UFC is most certainly on.More news: Steven Adams' OKC Thunder owns the most expensive roster in National Basketball Association history
But even then, Cormier is right to point out that he's fought guys with similar reach advantages. It appears Lesnar, a former UFC champ who still has to serve a suspension for a failed drug test, will get the next title shot.
"I am 39 years old, and I've been second a lot of times, but today I finally accomplished everything from crying in this very same octagon last year - nearly a year to the day - to becoming the UFC heavyweight champion".
Should the champ defeat Cormier, expect a possible rematch between Miocic and Francis "The Predator" Ngannou in which the champion held onto his title via unanimous decision back in January.More news: Italians Give Their Assessment Of England's Chances In This World Cup