Father: Floyd Mayweather, Sr.
Son's Stats: 43-0 with 26 KOs, Five-Division World Champion, 2x Fighter of the Year
Father's Stats: 28-6-1 with 18 KOs

Easily the most entertaining duo on this list, the Mayweathers are boxing royalty. Papa Mayweather had a decent boxing career but was later locked up for dealing drugs. After doing his bid, Mayweather, Sr. became a successful trainer. He trained Oscar De La Hoya, Chad Dawson, Laila Ali and Floyd Mayweather, Jr.

His son is arguably the greatest fighter of his generation (we said "arguably," relax Pac fans). Junior's defensive style is up there with the all-time greats. Whether Floyd, Jr. likes to admit it or not his dad did play a role in his success. Now if Mayweather Sr. could just convince him to fight Manny Pacquiao. *cues the soundtrack*