Same Trick
Green Belt
Kung Fu Wang is a skillful shuaijiao(Chinese wrestling) master, “leg skills” such as “shin bite”, leg sweep , leg tripping, scooping…and so on…is a major part of the wrestling style, which the name of it also indicates .This is the kind of thing found in karate kata I feel is often neglected. My current instructor does a good deal of explaining how your legs affect the opponents structure as you change stances and such. Not very obvious stuff looking at kata, but once you start looking for it it's everywhere. Cool stuff.
As for karate, stories from the old masters in Okinawa tells how they used to participate in wrestling games competitions, so it would seem a correct conclusion that many of traditional karate kata would contain such exquisite leg skills too, sanchin stance and stepping show such leg skill quite clear, Naihanchi kata is another that clearly show wrestling maneuvers.
Yes it’s pretty cool stuff
As KungFu Wang points out these skills are often also neglected or even not understood in many Chinese martial arts too