UFC 168 live blog: Chris Weidman vs. Anderson Silva

This is the UFC 168 live blog for Chris Weidman vs. Anderson Silva, a middleweight bout at Saturday night's UFC event at the MGM Grand Garden Arena in Las Vegas.

Weidman, who is 10-0 in his career, will face Silva, who has won four of his past five fights, in the main event.

Check out the UFC 168 live blog below.

Round 1: Herb Dean will ref the biggest rematch in UFC history. Silva a picture of focus. Weidman seems cool and collected too. They do touch gloves this time. Weidman waves his arms out there as distraction. Silva no nonsense. A couple of jabs by Weidman, and he shoots for single-leg and takes Silva down -- momentarily. Silva back up on fence, his back being pressed to the links. Weidman lands a huge shot that looks to have hurt Silva. Silva on his back, and Weidman drops big punch after big punch, and Silva's head bounced off the canvas. Dean close to stepping in, but he doesn't, and Silva regains composure for a moment. He grabs and ties up Weidman. Wow! Not out of harm's way yet though, as Weidman still in his guard and dropping punches. Weidman covering the mouth to stifle breathing. Silva doing adequate job of fending off huge strikes, but eating his share. There's a big elbow. And another. Now Silva throwing from the bottom, too. Returning fire on Weidman in isolated spots. He lands a couple of Weidman as the New Yorker postures up. Another elbow by Weidman. Inside of a minute to go, and Silva clinging on and reducing damage by keeping Weidman close. Finally Weidman forced up, but Silva still on his back looking for an upkick. Comes closse. Round ends with Weidman jumping back on top of Silva and landing another punch. MMA Fighting scores R1 for Weidman, 10-9.

Round 2: Weidman tries to touch gloves again, this time he's ignored. Nice inside leg kick by Silva temporarily buckled Weidman's leg. Weidman threatens takedown, but doesn't go for it. Silva's reflexes still good. An exchange of kicks, and Silva seems to have broken his ankle! Herb Dean comes in and stops the fight. Weidman will retain the middleweight title. Silva is lying on the canvas having his leg looked at. Wow. On the replay, you can see his leg snapped. Definitely a fracture. Crowd lets out a groan at the grotesque different angles. Not good for the 38-year old great.

UFC 168 official results: Chris Weidman def. Anderson Silva via TKO (injury) at 1:16 of R2.