Chael Sonnen wasn't going leave the 205-pound division without making some kind of impression.
After being dominated by champion Jon Jones, Sonnen met Mauricio "Shogun" Rua in the main event of the UFC's debut on Fox Sports 1. Expected to be lacking in the striking and jiu-jitsu departments when compared with Rua, Sonnen was predicted by many to use takedowns and ground-and-pound en route to a decision win.
Instead, Sonnen shocked Rua with a submission in the first round.
The result shook up a light heavyweight class that Sonnen may now be leaving for another middleweight title shot run.