Brock Lesnar might've had a defeat on his record before Cain Velasquez dropped him in the first round of their championship bout at UFC 121, but he'd never really been beaten.
Frank Mir walked away with a win when he caught the inexperienced behemoth with a knee bar, but Mir certainly took the rougher physical beating in the recently dethroned champ's Ultimate Fighting Championship debut. After that, the only individual to touch Brock up was Shane Carwin, but we all know how that ended—in a gurgle and tap by the Denver native.
Now, however, Lesnar has tasted a serious thrashing (and his own blood) at the hands of another physical specimen with much more polish on his mixed martial artistry.
Cain Velasquez didn't get lucky, he didn't capitalize on inexperience, and he didn't use some gimmickry to triumph.
The newly crowned heavyweight king flat-out destroyed Brock Lesnar—no two ways about it. He met the charging bull head on, held his ground, defended well, and imposed his will once his other-worldly endurance opened up a sizable advantage after only three minutes.
But the 265-pounders weren't the only ones who answered questions and asked others on the evening. Here are 21 lessons learned in the wake of another satisfying card: