Did anyone see the "invisible" punch that floored Liston.?

Yes it's been called the phantom punch many times and Sonny Liston was accused by many of taking a dive. But the biggest controversy is not whether the punch landed because it did, but whether it should have been devastating enough of a punch to floor a man as big and powerful with a chin that withstood the power bombs of Cleveland Williams without even blinking. This controversy continues to live on because nobody really knows for certain and many believe that Sonny had connections with the mob. True or not, I don't know.