The oblique kick targets an opponent’s knee and was made famous by Bruce Lee in his movie fight against Chuck Norris. It’s a good technique against a boxer but a powerful wrestler should be able to grab the foot and start driving for a takedown. Frankie Edgar would likely grab the foot and start running.
From a Muay Thai perspective fighters can punish someone using this kick by kicking the supporting leg or the kicking leg or both. Again a pullback/switch of the front foot is important. Here is an example:
If an opponent goes lower and harder this can also happen:
Here is Gus using this same counter:
From my original post on: https://www.bloodyelbow.com/2017/7/11/15918932/defeating-goat-beat-jon-jones-part-1-technical-breakdown-ufc-striking-wrestling-grappling-editorialhttps://www.bloodyelbow.com/2017/7/11/15918932/defeating-goat-beat-jon-jones-part-1-technical-breakdown-ufc-striking-wrestling-grappling-editorial