Joseph William Frazier (January 12, 1944 – November 7, 2011), nicknamed “Smokin’ Joe“, was an American professional boxer who competed from 1965 to 1981. He was known for his strength, durability, formidable punching power, and relentless pressure fighting style and was the first boxer to defeat Muhammad Ali. Frazier reigned as the undisputed heavyweight champion from 1970 to 1973 and as an amateur won a gold medal at the 1964 Summer Olympics. (Wikipedia)
This is what great documentaries are all about, changing one’s perception by teaching something new.