LAS VEGAS -- If there was a concern heading into the UFC 148 weigh-ins Friday, it involved main event participant Chael Sonnen.
The No. 1 middleweight contender said on Thursday that he was more than 20 pounds above the 185-pound title bout limit for his Saturday night rematch with champion Anderson Silva.
But Sonnen alleviated those concerns when he weighed 185 pounds at Mandalay Bay Events Center. The fight became official after Silva tipped the scale at 184.
Silva further displayed his dislike for Sonnen when the two faced one another during the customary staredown.
In an uncharacteristic move, Silva shoved his right shoulder into the jaw of Sonnen as the fighters stood face-to-face. UFC president Dana White quickly jumped in between the fighters to prevent Sonnen from retaliating.
"Chael doesn't respect (anything)," Silva said. "Chael doesn't respect my country. And I don't respect Chael.
The co-main event will be Ortiz's last professional mixed martial arts fight. He will be inducted into the UFC Hall of Fame on Saturday.
Every other fighter made weight for the event.