Sometime in Muhammad Ali's career he learned TKD and some punching techniques from Jhoon Rhee. Jhoon Rhee apparently taught Muhammad Ali some types of punches that Muhammad Ali used right away to knock out his opponent, which Ali himself talking about it in direct commentary in the video.
"Bruce Lee and I" book by Jhoon Rhee, an excerpt describes:
In this beautifully-designed, mainstream book with mass market appeal, Rhee explains how he taught his friend's (Bruce Lee's) secret punching technique to Muhammad Ali, who then credited “Mr. Jhoon Rhee's Accupunch” with his knock out of British champ Richard Dunn.
Amazon product ASIN 1466219602
Interesting stuff... take it with a grain of salt right now...
