Beginning his career as a light heavyweight, Alistair showed just how effective his 6-foot-5 frame could be against generally smaller opponents.
A powerful striker and underrated grappler, Overeem turned in some eye-opening performances that would indicate that the Dutchman was ready for the big leagues.
However, disappointing losses began to pile up and Overeem's days as an elite fighter in the world of MMA looked to be winding down.
After committing himself to the heavyweight division, Overeem has now been able to bulk up and become one of the most powerful and imposing figures in the weight class.
Undefeated in his last 12 fights, Overeem has came from the pits of obscurity and back into the limelight, much like these next few fighters who altered their paths, whether it be with a punch or a new level of dedication.
Alistair Overeem/ Jeff Cain for MMAWeekly.com