But it's only now that we're seeing Bruce in an actual fight courtesy of this clip uploaded to YouTube on Sunday that's been going crazy viral.
YouTube account Bruce Lee Central posted the video above with the following explanation:
This is the only recording of Bruce Lee in a real MMA fight. He's fighting Ted Wong here, one of his top students. They are wearing protective gear beacause they were NOT ALLOWED to fight without them. Those were the state rules at the time. If not for those rules I can guarantee you that Bruce would have fought bare-knuckled. Footage is restored to 4K resolution. Enjoy.
The Daily Mirror reports:
Ted Wong was a martial arts practitioner who was best known for studying under Lee. He was born in Hong Kong in 1937 and died in 2010 aged 73.
In the video, Lee manages to keep his opponent just out of range with some nimble footwork before suddenly striking with a punch to the body.
Later in the clip, he counters another right-hook with a devastating two-punch combo to the chin.
Viewers were captivated by the rare clip, which has already racked up more than three million views since it was uploaded to YouTube on Sunday.
"Bruce is so calm in this fight but still wins - what a legend," one user wrote.
The same Lee-obsessed YouTuber previously uploaded a clip of Lee taking on a Karate Black Belt, blindfolded:
And performing two-finger push-ups:
Of course, you could just watch his greatest movie fight scenes of all time: