Future NBA Hall of Famer Shaquille O'Neal has been spending his off-seasons training MMA, Cagewriter is reporting.

Shaq has been supporting MMA events for as long as I can remember and the fact he trains in the sport is not surprising.

The sport is one of the best forms of self defence but an incredible workout indeed. Most people do not comprehend what goes into MMA training -- Boxing, Muay Thai, Kickboxing, wrestling and submissions.

Just doing one of the aforementioned is a great workout, but when you encompass all of them, it's easy to understand why the sport continues to be a great option for many who are looking to get or stay fit.