Anderson Silva: 'Challenger Chael Sonnen is screwed'

Anderson Silva has warned Chael Sonnen that he is 'screwed' ahead of their UFC middleweight title rematch this weekend.

Silva and Sonnen will lock horns in Las Vegas on Saturday night in a hotly-anticipated rematch.

Silva was in no mood for jokes at today's pre-fight press conference, talking candidly about the UFC 148 showdown.

"Play time is over. Saturday, a lot of things are going to change. It's going to be very different after Saturday. I have nothing else to say, other than he's screwed," he stated.

American challenger Sonnen dominated the pair's first encounter only to be submitted with just minutes of the clash remaining.

Silva and Sonnen II will finally take place at the MGM Grand Garden Arena.