Chael Sonnen -- TEARS APART Jon Jones with Pizza Poster

Chael Sonnen is still taking shots at UFC star Jon Jones, but now he's doing it with a flier for his pizza joint in Oregon ... and it's pretty obvious what he's trying to say.

Sonnen is still fuming mad that Jones refused to fight him at UFC 151 after Sonnen was named as an injury replacement for Dan Henderson.

So now Sonnen is calling out Jones by adverting a Jon Jones Special Pizza ... which is "loaded with chicken."  He also pokes fun at Jones' DUI arrest back in May, by advertising that the special comes with a six-pack of beer ... but they offer delivery so you'll "avoid a DUI."