So rare are the sightings that some might call it the Bigfoot of submissions.
Charles Oliveira on Jan. 28, 2012 downshifted to featherweight and executed the first calf slicer in Ultimate Fighting Championship history when he disposed of Eric Wisely with the maneuver as part of the UFC on Fox 2 undercard at the United Center in Chicago. Wisely, his face contorted by some combination of bewilderment and pain, asked out of the match 1:23 into Round 1.
Operating in the shadows of the Rashad Evans-Phil Davis main event, Oliveira went after the Strikeforce alum’s legs from the start and drilled his lower extremities with a series of sharp kicks.