Floyd Mayweather Sr. is a 66-year-old man but can still throw his hands better than a large segment of the population. Nevertheless, a world-class boxer way past his prime gets a pass when a check hook sends them to the canvas. Mayweather Sr. went down during a recent sparring session at his son's TMT Gym in Las Vegas where he showed that his skills are still intact. But the elder Mayweather doesn't have the jaw he once did which resulted in him crashing down to the floor after being caught. 

Source: tmz.com