Fighters come in all shapes and sizes. Each and every fighter is different.
Some are tireless workers, while others are natural athletes.
Fighters can do a variety of things to improve for their next fight. They can switch training camps, try new workouts and diets, or learn totally new skills to add to their repertoire.
Every fighter improves differently. There are a few that step into the cage looking better than ever, each and every time.
Fighters aim to improve their entire career. They want to be the best, and will do anything in their power to reach that goal.
Here are 2012's ten most improved UFC fighters.